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DIE JOERNAAL VIR DIE VRUGTEBEDRYF IN SUID-AFRIKA APRIL/MAY '19 - SA Fruit Journal
DIE JOERNAAL VIR DIE VRUGTEBEDRYF IN SUID-AFRIKA   A P R I L / M AY ‘ 1 9
DIE JOERNAAL VIR DIE VRUGTEBEDRYF IN SUID-AFRIKA APRIL/MAY '19 - SA Fruit Journal
DIE JOERNAAL VIR DIE VRUGTEBEDRYF IN SUID-AFRIKA APRIL/MAY '19 - SA Fruit Journal
APRIL/MAY 2019 | SA FRUIT JOURNAL   1
DIE JOERNAAL VIR DIE VRUGTEBEDRYF IN SUID-AFRIKA APRIL/MAY '19 - SA Fruit Journal
ELKE UITGAWE                          BEDRYFSNUUS
EVERY ISSUE                           INDUSTRY NEWS
SA Fruit Journal                      HORTGRO                                              CITRUS GROWERS’
Board of Directors      4                                                                  ASSOCIATION (CGA)
                                      Daff Delegation visits packhouse       8
Editorial   5                                                                              Thudana Citrus Trust launch ushers
                                      Addressing industry challenges     10
Foreword    6                                                                              upliftment 26
                                      Hortfin appoints new CEO     11
Strawberries. Rethink: a new                                                               Comparing South African and
                                      NEXT GENERATION SERIES:                              Moroccan citrus 29
song on an old tune 66
                                      About apples and adventure      12
Last Word: Piet Smit        71                                                             Maersk Lines centralising rail transport of
                                      Noordelike Provinsie-studiegroep       14            citrus for export from Johannesburg 30
                                      CRISIS - Best teacher for resilience   16
                                      The impact of the 2017-18 drought:                   SOUTH AFRICAN TABLE
TO SUBSCRIBE:
                                      A case study using FruitLook data 18                 GRAPE INDUSTRY (SATI)
Filda Booysen
filda@hortgro.co.za                   Agri’s Got Talent 2019: Bigger and Better       22   Bergrivier tafeldruifstreek hou
021 870 2900                                                                               blokkompetisie vir 32ste jaar 34
                                      Agri’s Got Talent 2019: Groter en Beter     23
Design and layout by                                                                       SATI verkies twee nuwe direkteure    35
                                      The chronicles of the travelling pear      24
Colleen Goosen                                                                             SATI-funded Research Report: update 36
colleen@paperchefs.com
                                                                                           South African table grape industry
Printed and bound by
                                                                                           first crop estimate for 2018/2019 season      39
Novus Print Solutions

                                                                                           SIZA
                                                                                           Rainforest Alliance and SIZA collaborate
                                                                                           to avoid duplication for South African
                                                                                           suppliers 40
 SAFJ (SA Fruit Journal) is also available in electronic format on our website.
                                                                                           SIZA: Monitoring between audits    41
  SAFJ (SA Vrugtejoernaal) is ook elektronies beskikbaar op ons webtuiste.
                                 www.safj.co.za
DIE JOERNAAL VIR DIE VRUGTEBEDRYF IN SUID-AFRIKA APRIL/MAY '19 - SA Fruit Journal
CONTENTS
                                                                                                           VOLUME 18 | PART 2

RESEARCH &
TECHNOLOGY
CITRUS RESEARCH                              HORTGRO                                               ADVERTORIALS
INTERNATIONAL (CRI)                          SCIENCE
                                                                                                   InteliGro’s Integrated Crop Solution
Extension briefs for April and May   46      A multi-parameter approach to optimise                Approach 44
                                             the design and performance of ventilated
NADORCOTT MANDARIN: keeping growth                                                                 IRRICHECK 360° - Irrigation
                                             fruit packaging 56
in check and maintaining productivity                                                              Scheduling 51
through pruning 52                           Assessing the biology of Bactrocera dorsalis
                                                                                                   NexusAG vestig berokingseenheid
                                             (Hendel) (Diptera: Tephritidae) 63
                                                                                                   om grondberoking te verhewe 72
                                             Reducing carbon emissions on farms
                                             with improved water management 70

  CORRECTION                                  Pg. 50: Introduction - 2nd sentence:

  SAFJ Feb/March 2019                         Male lures which are species specific are used to track male populations of fruit flies
                                              whilst food-based attractants which are not species specific and female biased are
  This is a correction pertaining to
                                              used to track female populations of several fruit fly species (IAEA 2013).
  CRI’s Monitoring of Fruit Fly Pests In
  Commercial Citrus Orchards:                 Pg. 51: Figure. 1 legend:

  Temporal Patterns Of Male And Female        Traps used for studying seasonal phenology of male and female populations of
  Catches, featured in SAFJ Feb/March 2019    Medfly and Oriental fruit fly: Moroccan trap baited with methyl eugenol for
  (pages 50-51)                               monitoring of Oriental fruit fly male (A), Sensus bucket trap baited with trimedlure
                                              for monitoring of Medfly male (B) and Chempac Bucket trap baited with
                                              3-component Biolure for monitoring of females of both species (C).

                                                                           APRIL/MAY 2019 | SA FRUIT JOURNAL   3
DIE JOERNAAL VIR DIE VRUGTEBEDRYF IN SUID-AFRIKA APRIL/MAY '19 - SA Fruit Journal
SAFJ BOARD OF
         DIRECTORS

                                                                                            IGNATIUS VLOK
                                                                                      082 331 2127 | sales@safj.co.za
KONANANI LIPHADZI
     CEO, Fruit South Africa

                                                              Opinions expressed in advertisements and promotional articles are not
                                                necessarily those of the SA Fruit Journal. We do not accept responsibility for damage or injuries
                                               which may arise from possible inaccuracies. All rights reserved, none of the content may be used
         ANTON RABE                                       in any other media without the prior consent of the SA Fruit Journal (Pty) Ltd.
 Executive Director, HORTGRO
                                                                             SA FRUIT JOURNAL ISSN: 1683-4577

                                                                             SAFJ SHAREHOLDERS

     ANTON KRUGER
                  CEO, FPEF                           FPEF FRESH PRODUCE                                                       CGA
                                                       EXPORTERS’ FORUM                                             CITRUS GROWERS’ ASSOCIATION
                                                Private Bag X5, Century City 7441                              PO Box 461, Hillcrest 3650 • Tel: 031 765 2514
                                              Tel: 021 526 0474 • Fax: 021 526 0479                             Fax: 031 765 8029 • justchad@iafrica.com
                                                         www.fpef.co.za                                                       www.cga.co.za

                                                                                        SATI
                                                                         SOUTH AFRICAN TABLE GRAPE INDUSTRY
  WILLEM BESTBIER
                                                                         63 Main Street, Paarl 7646 • Tel: 021 863 0366
                  CEO, SATI
                                                                                       info@satgi.co.za
                                                                                       www.satgi.co.za

                                                  HORTGRO POME (SAAPPA)                                                 HORTGRO STONE (SASPA)
                                            Tel: 021 870 2900 • Fax: 021 870 2915                                 Tel: 021 870 2900 • Fax: 021 870 2915
                                        258 Main Street, Paarl • PO Box 163, Paarl 7620                      258 Main Street, Paarl • PO Box 163, Paarl 7620
  JUSTIN CHADWICK                         info@hortgro.co.za • www.hortgro.co.za                                info@hortgro.co.za • www.hortgro.co.za
                 CEO, CGA

                               4   SA VRUGTE JOERNAAL | APRIL/MEI 2019
DIE JOERNAAL VIR DIE VRUGTEBEDRYF IN SUID-AFRIKA APRIL/MAY '19 - SA Fruit Journal
EDITORIAL

                                                    A running
                                                    start
                                                    Our fruit industry had quite an                              CATHERINE
                                                    eventful first quarter.                                      MILWARD-BRIDGES
                                                                                                                  Interim Editor: SAFJ

                                                    I
                                                          t kicked off with the establishment of a repre-
                                                          sentative desk at Agbiz, from which the industry
                                                          will conduct market research, devise strategy and lobby for relevant policy
                                                          and legislative matters. Then, we hosted Minister Senzeni Zokwana for his
                                                    scheduled Service Delivery Forum, which included a tour of Two-A-Day farm
                                                    facility in Grabouw, as well as Oak Valley. The visit was an industry first and a
   CARMÉ NAUDÉ           CLAUDIA WALKLETT           significant stride towards strengthening ties with government. Fruit Logistica
HORTGRO 021 870 2900       FPEF 021 526 0379        Berlin followed, where Konanani Liphadzi was elected as President of the Southern
 carme@hortgro.co.za      claudia@fpef.co.za
                                                    Hemisphere Association of Fresh Fruit Exporters (SHAFFE), during the association’s
                                                    Annual General Meeting. Hearty congratulations! This prestigious event also saw
                                                    one apple -and various new citrus cultivars unveiled by the Agricultural Research
                                                    Council (ARC) of SA. Now for the dti to reveal the total export sales and trade deals
                                                    generated by the SA pavilion at Fruit Logistica Berlin this year.
                                                    The industry showed a marked growth in production volumes last season, with
                                                    a 14% increase for citrus being a case in point. Agricultural economist, Wandile
                                                    Sihlobo also confirms that these fruits’ increased exports contributed significantly
                                                    to the growth in SA’s agricultural export total for 2018: oranges, lemons, manda-
                                                    rins, grapes, pears and apples. The sector’s overall growth of 7% y/y to US$10.6
                                                    billion marks a 17-year record!
  GLORIA WEARE            CLAYTON SWART
                           SATI 021 863 0366
                                                    Konanani echoed some of these ‘brag facts’ and also shared key industry chal-
  CGA 031 765 2514
  Gloria@cga.co.za        clayton@satgi.co.za       lenges, during her recent radio interviews (on SAFM’s The Homerun and on RSG
                                                    Landbou). To have a listen, visit the news page on the FruitSA website.
                                                    Fruit has certainly grown in popularity amongst global consumers; and in his
                                                    foreword, Anton Kruger indicates how the trends that drive fruit consumption
                                                    have changed the narrative around this delicious snack of nature.
                                                    With the drought still very high on the industry radar, we explore the effectiveness
                                                    of FruitLook’s smart satellite-based data products that enable farmers’ efficient
                                                    use of water resources. We also quiz industry stalwarts on lessons learnt from the
                                                    drought, particularly from an irrigation perspective. In the same vein, we highlight
                                                    improved water management as a champion for critical carbon emission reduction
                                                    on farms.
  TSHIDI RAMABU        ELISE-MARIE STEENKAMP
                                                    Then, for a transformation story that simply had to be told: San Miguel Fruits SA
   CRI 013 759 8013        HORTGRO 021 870 2900
 resadmin@cri.co.za     elise-marie@hortgro.co.za   launched the Thudana Citrus Trust in the Sundays River Valley on 28 January,
                                                    which represents a whopping R 200m investment. This initiative has elevated
                                                    qualifying workers to board members, with a collective           CONTINUED ON PAGE 6

                                                                         APRIL/MAY 2019 | SA FRUIT JOURNAL   5
DIE JOERNAAL VIR DIE VRUGTEBEDRYF IN SUID-AFRIKA APRIL/MAY '19 - SA Fruit Journal
FOREWORD

                                  Growth and sustainability . . .

                                  T
                                       he consumption of fresh fruit          to children at no charge, that can be enjoyed in a dedicated area in
ANTON KRUGER                           has sparked healthy dialogue           the shop. And children do indeed take advantage of this opportu-
CEO, FPEF                              worldwide, with varying view-          nity to enjoy nature’s snack. For some of the young takers, these
                                       points. And the growing focus          pieces of fruit may even be their only healthy ‘meal’ for the day.
on the health benefits of fruit is a case in point. It’s had nutritionists,   Equally interesting is the growing trend among airlines who offer
dieticians, academics, researchers, communications professionals, as          passengers fresh fruit as a snack during long haul international
well as trade contributing to the narrative.                                  flights, replacing the relatively unhealthy variety passengers had
The University of Pretoria’s Institute for Food, Nutrition and Well-          become accustomed to.
being is a collaborative programme that brings together researchers           Even in SA, where we’re prone to tucking into food during meet-
from seven faculties and 35 disciplines, including unlikely partners          ings, those carbo-loaded eats are gradually being replaced with
(such as the departments of Private Law and Political Science).               fresh fruit as part of the refreshments.
This critical mass of researchers seeks to address food insecurity            Savvy consumers around the world are becoming more
and to find ways of building a more resilient agriculture and food            discerning about their food choices, which presents a great incen-
system that will reduce hunger and malnutrition. They also aim to             tive to the fruit industry to continue to produce and market good
promote consumption behaviour that ensures human productivity                 quality fruit.
and overall well-being.                                                       Measured responsiveness to relevant trends can only serve to drive
Foodies are also developing an increasing number of recipes                   growth and sustainability, and our industry certainly seems to be on
that feature fruit as a key ingredient. These are often shared with           the right track.
consumers online, in books, on radio and on television.
A growing interest in fresh produce has also led to creative market-
ing by some restaurants and retailers, like the Avocado Show in
Amsterdam, where the entire menu consists of avocados.
Customers can expect to find classic avocado dishes, as
well as contemporary creations.
Here in SA, some retailers have come up with
innovative promotions to increase fresh
produce consumption, like the intro-
duction of the Free Fruit For Kids
project, availing fruit

EDITORIAL CONTINUED FROM PAGE 5

ownership of 30% in this broad-based black ownership scheme.                  encouraged the nation to persevere with pruning and plucking
We hope that these and more in this edition, make for a compel-               away at the rot, “until there is growth”. Well, in the fruit industry,
ling read that will inform and, importantly, help improve your                we’ve perfected the art.
efficiencies.                                                                 Now, we look forward to maximising our progressing growth by
Prominent global concerns remain the US-China trade war, Brexit               continuing to export to existing markets, whilst finding new ones.
and a slowing global economy. But closer to home we have the                  This, we can only achieve with the ongoing support of our govern-
looming elections, the outcome of which we continue to hope will              ment, by concluding favourable trade agreements.
be economically beneficial for all.                                           CATHERINE MILWARD-BRIDGES
In his maiden Budget Speech, Finance Minister Tito Mboweni                    Interim Editor: SAFJ

                                  6     SA VRUGTE JOERNAAL | APRIL/MEI 2019
DIE JOERNAAL VIR DIE VRUGTEBEDRYF IN SUID-AFRIKA APRIL/MAY '19 - SA Fruit Journal
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DIE JOERNAAL VIR DIE VRUGTEBEDRYF IN SUID-AFRIKA APRIL/MAY '19 - SA Fruit Journal
Fruit SA Chairperson, Justin
Chadwick, hands over a fruit
basket to Minister Zokwana.

                                Daff Delegation visits packhouse
                                ELISE-MARIE STEENKAMP

                                The Department of Agriculture, Forestry, and Fisheries (DAFF) Minister, Senzeni
                                Zokwana, as well as DAFF Director-General, Mike Mlengana, visited the deciduous fruit
                                industry on 16 January this year at Two-a-Day’s facility in Grabouw.

                                T
                                          his historic visit was facilitated by Fruit   who thereby, indirectly care for a further 32 000
                                          South Africa CEO, Dr Konanani Liphadzi.       dependents in the EGVV region alone.”
                                          Liphadzi said during the welcoming that       Two-a-Day is proud of their transformation achieve-
                                          ‘getting the Minister to the fruit industry   ments, like their education scheme for workers’
                                          has been a dream come true’. “We are          children. “No child of any worker, who has the poten-
                                          proud to showcase this R44 billion industry   tial to study, should not do so due to insufficient
                                that is rapidly growing with new hectares being         funds. The Two-a-Day Education Trust was created
                                planted annually. We are eager to partner with          to support workers’ children, thereby helping them
                                government to address issues such as job creation,      fulfill their potential.”
                                transformation, and upliftment.”                        Van Zyl went on to say that they believe in value
                                During a short briefing session, Two-a-Day Manag-       chain integration and empowerment. He also
                                ing Director, Attie van Zyl, gave an overview of        mentioned several schemes and empowerment
                                the company and the pome industry as a whole.           initiatives as examples. “Two-a-Day has transferred
                                Van Zyl said that Two-a-Day is passionate about         more than R1 billion in value to various empower-
                                agriculture and all the workers that they employ.       ment projects.”
                                “We are the biggest employer in EGVV and have           Cheryl Kammies, a packhouse worker at Two-a-Day,
                                8 000 workers that comprise 1 800 factory workers,      said that she was proud to be an employee of the
                                1 200 farm workers, and 5 000 seasonal workers,         company. “I have worked here for fourteen years

                                8   BEDRYFSNUUS | APRIL/MEI 2019
PHOTOGRAPHS BY:
CARMÉ NAUDÉ & ELISE-MARIE STEENKAMP

                                                                                                                      Above: Two-a-Day
                                                                                                                      packhouse visit - Minister
                                                                                                                      Zokwana in the middle
                                                                                                                      with grey jacket and Mike
                                                                                                                      Mlengana, DAFF DG, on
                                                                                                                      the right.
Above: Oak Valley agricultural
worker, Cecilia Jantjies showing the
Minister her home.
Right: The Oak Valley crèche with
teacher Vidonia Jantjies.

and put two children through school. Both of them          government and industry work together, we can
are well-educated. I can honestly say we have a            achieve more. There are serious issues, such as food
very good relationship with management and as              security and job creation that need to be addressed,
co-beneficiaries, in certain projects, we are well         and agriculture is well positioned to make a signifi-
cared for.”                                                cant contribution in this regard.”
Errol April, an emerging grower and Two-a-Day              Minister Zokwana addressed some of the chal-
member, said that black farmers should be repre-           lenges mentioned by roleplayers and said that the
sented throughout the agricultural value chain.            government is taking note of all of them. “With
“There are too many inconsistencies with regards to        respect to free trade, we are going to do our jobs,
ownership of land. We need government to hand              and specifically with regards to pear exports – we
over the title deeds, as financiers find it difficult to   hope to open Thailand and China this year.”
have confidence in our sector. Black farmers want to       After the meeting, the delegation visited Oak Valley
stand tall and be successful. We can farm, and we can      to see the agri-worker housing, school facilities, and
export fruit – the same as any other commercial fruit      crèches.
producer. Help us do it. We will pay back the money.”      Later that same day, the Minister convened his
DAFF DG, Mike Mlengana, said that the Department           annual service delivery forum at the Erinvale Hotel
was inspired by the level of commitment from               in Somerset West. He spoke to more than 150 politi-
the industry that they had witnessed. “When the            cians, captains of industry and other roleplayers.

                                                                                 APRIL/MAY 2019 | INDUSTRY NEWS   9
Addressing industry challenges
                            Hortgro Pome recently invested R2.5 million in a pristine world-class controlled atmosphere (CA) research facility
                            at Stellenbosch University (SU). Those involved are very excited, as the facility will help solve post-harvest
                            problems within the industry, such as the very pestering superficial scald. The state of the art equipment places
                            SU at the frontline of CA research and seeks to answer previously unanswered questions,
                            to ensure the success of various cultivars.                                                     GRETHE BESTBIER

                            T
                                  here is no point in conducting research if there is no demand        scrubs ethylene, but at very low oxygen levels. The Van Amerongen
                                  for it in practice, and according to Dr. Elke Crouch, post-          or DCA-RQ system is a more dynamic system and estimates the
                                  harvest physiology and technology researcher at SU, the new          amount of oxygen the fruit uses and produces and then changes
                                  CA facility presents a myriad practical applications.                the oxygen levels according to that.
                            “It is actually such a great field to work in, because there is always a   “There are a lot of possibilities. You can play around and answer many
                            need you are addressing,” says Crouch. “It is always applicable.”          questions,” says Crouch, who is currently taking the lead in the CA
                            The advanced facility will help solve post-harvest problems within         research project at hand. “However, you will have to do it bit by bit.”
                            the deciduous fruit industry. Not only will it enable researchers to       Current research compares the three systems and determines
                            determine how long pome varieties can be stored for, but also in           which atmospheric conditions will optimise the fruit’s post-harvest
                            which atmospheric conditions post-harvest defects can be mini-             storage life. It aims to answer questions like whether ethylene
                            mised. According to Isocell, this new system installed by them at SU       scrubbing improves long-term storage, and also evaluates other
                            is the best they have worldwide, which makes SU the only research          parameters of the different systems, including the ease of the
                            facility globally with this set of equipment on a single premise.          system control, support, and communication.
                            “We are very excited because this makes us world-class. We are at
                                                                                                       The two-year-long project also looks at the cost of the different
                            the forefront of research, where we’ve never been before,” says
                                                                                                       systems, comparing their prices and outcomes, and determines
                            Crouch. “We are excited about so many things, especially produc-
                                                                                                       whether the large investments required by producers will be
                            ing answers we’ve never had before.”
                                                                                                       worthwhile. Certain systems are cheaper than others. The less
                            The new CA facility allows researchers to compare three systems,           pricey Absoger system, for instance, does not change dynamically
                            using four treatments, with one another. The DCA-Chlorophyll               and has a certain fixed level, but also absorbs ethylene.
                            Fluorescence (DCA-CF) system allows for a treatment that scrubs
                                                                                                       “So, the question is, can you get away with a smaller investment,
                            ethylene and one that does not, and measures the respiration
                                                                                                       and have the same outcome?” asks Crouch. According to her, the
                            quotient. The Absoger or XLO system, on the other hand, also
                                                                                                       significance of the new equipment lies in the fact that they have a
                                                                                                       variety of controlled atmosphere systems in one premise.
                                                                                                       “For any controlled atmosphere system you can determine how
                                                                                                       long you can store fruit for, but I think the fact that we have differ-
                                                                                                       ent types of CA systems allows us to create different recipes for
                                                                                                       each cultivar,” says Crouch.
                                                                                                       At the end of the day, why do we have a controlled atmosphere?
                                                                                                       According to Crouch, it is simply to store fruit for as long as possi-
                                                                                                       ble, while maintaining its quality.
PHOTOGRAPH BY CARMÉ NAUDÉ

                                                                                                       “The guy that can store fruit for the longest time with the best qual-
                                                                                                       ity gets the money,” she says. “The controlled atmosphere system
                                                                                                       that can store the fruit for the longest period and have it age the
                                                                                                       least, is the winner.”

                                                                                                       Hortgro Pome Chairperson, Nicholas Dicey, pictured in front of the new
                                                                                                       Isocell Controlled Atmophere facility at Stellenbosch University.

                                                           10    BEDRYFSNUUS | APRIL/MEI 2019
Hortfin
Superficial scald is probably the greatest issue and main storage
                                                                         appoints
disorder in pome fruit, and can lead to large financial losses. Fruit
is stored for extended periods to take advantage of main export          new
                                                                         CEO
markets, and often displays light brown to black blemishes on
the fruit peel, rendering it unmarketable. If a piece of fruit is
damaged, it's unsightly and cannot be packed for the overseas
market. If fruit can be kept healthy for a longer time by control-
ling the storage atmosphere, the industry can make more money
during a time of the year when there aren’t many quality apples
and pears overseas.                                                      Hortfin, the first ring-fenced loan facility of the
                                                                         fruit and wine industry value chain, has appointed
“Quality is very important. If your fruit is not of good quality, you
                                                                         Michael Brinkhuis as its new Chief Executive Officer.

                                                                         B
receive a claim. This means you are going to have to pay for the
fruit, rather than make money from it,” says Crouch.                             rinkhuis, who qualified as a horticulturist and holds a
Up to this stage, superficial scald has mostly been controlled                   Masters degree in Agriculture from the Stellenbosch
commercially by drenching the susceptible fruit in diphenylamine                 University (SU), has worked in agricultural research, retail
(DPA), a synthetic antioxidant. According to Gustav Lotze, technical             and development and has lectured in Horticulture and
manager at the SU Department of Horticultural Science, they want                 Environmental Studies.
to eliminate superficial scald through the application of a system, as   Hortfin Chairman, Tshililo Ramabulana, said that Brinkhuis has
opposed to treatment or a chemical used on the fruit. The key driver     demonstrated his ability to work successfully in different environ-
of finding alternative ways of controlling superficial scald was the     ments throughout his career. “He has designed leading strategies
fact that the EU banned the use of DPA a number of years ago.            which have resulted in impressive value creation. I, for one, am
Lotze, who is responsible for monitoring the atmosphere and              looking forward to working with him in creating the next success-
the cooling of the premises, explains that there are various safety      ful transformation chapter of the fruit and wine industries.”
measurements in place to ensure that the very expensive equip-           Hortgro Operational Manager and Interim Hortfin Manager,
ment and the people working with it, stay safe. These include            Mariette Kotze, said that they were excited about the appoint-
sensors that detect possible leaks or alarming oxygen rates, and an      ment of Brinkhuis as the CEO of Hortfin. “He is well-known and
alarm system that informs Lotze if anything is out of place.             respected within the agricultural community. His experience,
According to Lotze, the electronics of the facility is what he most      skills, and attitude will result in favourably positioning Hortfin
enjoys. The advanced system allows him to monitor every aspect of        to enable inclusive growth within both the deciduous fruit and
the CA facility via computers. “It gives you so many more advanta-       wine industries.”
ges,” says Lotze. “In the past, you could only import a gas composi-     Brinkhuis has for the latter part of his career leant towards the
tion into the computer and it would regulate it for you – that is all.   public sector, and has spent the last four-and-a-half years as
You did not know what was going on inside the closed container,          CEO of a state-owned entity responsible for agriculture and
but now you can actually see exactly what is happening, with the         economic development programmes.
help of electronics, on a computer screen.”                              “My goal is to strive for development and sustainability in
For Crouch, the exciting thing is the ability to create conditions       endeavours and creating partnerships aimed at augmenting
enabling the storage of fruit for so much longer. “I think enabling      initiatives,” Brinkhuis said. He is an outdoors person
people to store fruit for so long is simply amazing,” says Crouch.       who enjoys nature, sports and reading.
“This small living product, with its tiny amount of energy, can
                                                                           Find more information on the
be stored for such a long time if you keep the oxygen levels low
                                                                           Hortfin website: www.hortfin.com
enough, which is critical.”                                                Please contact Carmé Naudé
Therefore, one of Crouch’s next challenges is to determine exactly         for media related enquiries:
where that ideal oxygen level mark lies.                                   carme@hortgro.co.za

                                                                            APRIL/MAY 2019 | INDUSTRY NEWS    11
I
  t’s an early autumn morning. The slow wind swirls some reddened
  leaves on the slate floor of the weather-beaten stoep of the main
  house, on the farm Erfdeel. Didi Smith-de Kock and I are shar-
  ing some coffee and words, about her life as a fruit farmer and
  as an adventurer. The backdrop to our stage is the well-known
Matroosberg that earned its name from a rock formation about
three-quarters of the way up the mountain, on the Hex River side. It
depicts a distinct pinnacle, the sailor alongside his ship.
This story started many moons ago. At the time Didi’s father, André
Smith was working as the manager on the farm Hoogland near
Ceres, not far from the farm where I met with Didi. One Friday, the
main water pipe to the house burst on Hoogland, home to Didi
and her folks. With everything under water, André got the pick and
shovel and started digging. At that moment oom Kinnie Theron,
the then owner of Erfdeel, arrived on the scene at Hoogland.
“It’s Saturday afternoon,” he said, “why are you swinging that pick?”    She attended school in Ceres, first as a boarder, but as soon as she
“The main water pipe needs fixing,” Didi’s dad answered.                 could see over the dashboard of the old station-wagon, she drove
“But why don’t you get some of the workers to do it?”                    the 20 km to the school bus’s starting point, driving herself back
“They need rest. It’s their weekend off. And this is my water pipe,”     around three in the afternoons to help out in the orchards. Didi
André answered.                                                          enjoyed the farming activities so much, she couldn’t get out of her
The man looked at him for some time, then he responded: “If I ever       school tunic quickly enough after school.
sell Erfdeel, I’ll sell it to you.”                                      When she’d matriculated, Didi was set on going to Elsenburg
André never thought about the incident again. Eventually, he went        College to get an agricultural qualification. She believes she would
to work for the Du Toit group for five years. Didi’s mom, Cora, then     have been the first woman in Elsenburg. However, her dad wanted
did administration in the Du Toit group’s offices. They lived off        her to experience a life beyond Erfdeel, and encouraged her to get
her salary while saving Andre’s. One day, oom Kinnie looked him          a different qualification that comes with a bit more security. So,
up, Erfdeel was for sale. But their savings were just not enough, so     Didi became a nurse, but she could only manage this for four years.
André had to decline.                                                    She wanted to be back on the farm, but the business was too small
                                                                         for an additional farmer. Cordré, her brother was managing the
“You can rent it, to begin with,” oom Kinnie said.
                                                                         farm under Andre’s watchful eye. In the meantime, Didi got herself
At the age of 35, André and his family arrived at Erfdeel with R7 000,
                                                                         a marketing qualification and entered the life insurance arena.
and neither a shovel nor a pick to their name. Cora cried her eyes out
                                                                         She did well, ending up as the district manager for AVBOB in King
when she saw the dilapidated house. But to Didi, who was five years
                                                                         William’s Town. Now in her 20s, Didi was desperately unhappy.
old at the time, it was heaven. She couldn’t get enough of the land,
                                                                         “Please Dad, may I come back to the farm?”
the dust and the fruit. Didi blended right in, but because she was too
                                                                         “Good timing, we’re starting with the hardies tomorrow.”
young to carry a picking bag or basket, she did pre-pack selection.
Anything would do, as long as she was involved.                          Didi was beside herself, considering the prospect of being part of

                               12    BEDRYFSNUUS | APRIL/MEI 2019
Left: Didi and two pruners working the orchards.
Right: Matroosberg is internationally known as a snow destination.
Pictured here is the famous goatherder’s hut.

Erfdeel again, becoming entrenched in the life she loves more than         country. At the same time, they restored the ruins of the oldest
anything, helping to run and manage the farm. But at fall-in the           building, the goatherd’s hut, to offer six beds in total. Today, they
next morning a picking basket was awaiting her. From having held           offer 250 beds in various places, as well as camping for 150 people.
a corporate managerial position, she was now plucking hardies (soft        And in addition to 4×4, they also have skiing and snowboarding
hands and even softer shoulders, and all).                                 in winter (including heli-skiing), as well as abseiling, a high ropes
“Dad left me that whole season with that basket. But less than two         course where you traverse through ancient, humongous pine trees.
weeks later I was carrying it with the best. I wouldn’t give in to a       Then, there’s rock climbing, quad and mountain biking, hiking,
picking basket. Saying ‘I can’t’ doesn’t exist. You do what needs to be    kloofing, ice climbing. They also host corporate team building
done. That’s it.”                                                          functions, conferences, weddings and so much more. In addition
                                                                           to being a qualified Satour guide, 4×4, abseil and high ropes
Twenty years on, and Erfdeel is doing well. Didi’s an indispensable
                                                                           instructor, Didi also became a chef, beautician for brides, florist, and
part of the triangle (along with Cordré and André) looking after the
                                                                           whatever else a tourism and events venue requires. But first and
production, the inspections, the pruning et al. Nowadays, they’re
                                                                           foremost, she’s a farmer at heart who believes in an apple a day.
doing it all on a WhatsApp group, Top-crop. They have a winning
formula, with innovation, technology, the earth’s offerings and a          Today, they are the leaders in offering farm tours in the district. Most
close-knit, dedicated team.                                                of their visitors are from Europe, mainly France and Germany. They
                                                                           come to experience the South African way of doing exactly what
                                                                           they are doing with machines. At Erfdeel guests get to pick their
It’s not only about apples
                                                                           own bag of apples and feel part of the process.
Although Erfdeel is 1170 ha in size, it offers the smallest workable
section of farmland in the area. At present they have 20 ha under          “My favourite part of these tours is telling them that they now have
apples and Didi and company are planning to add another 20 ha.             the opportunity to pick a virgin apple,” Didi says, laughing.
Many would be disheartened by the fact that barely 10% of the              “What is a virgin apple?”
farm is arable, but Didi has seen it as an opportunity. And of the         Think about it. The picker picks the apple. From the crate the
many lessons her dad has taught her, diversification stands out.           selector handles it. Someone puts it on the lorry. Another hand
Never put all your apples in one basket, he said. If the rains don’t       downloads it at the packing shed, then it goes into a box, and off
come and if the crops fail, you need something to fall back onto.          to the cold room. From there it’s onto the supermarket, packed on
The fact that the majority of their 1170 ha was rugged mountain            the rack to eventually be handled by the tiller, before you can eat it.
presented an opportunity. Introducing tourism at Matroosberg               Picking it yourself from the tree, it’s only you handling it.
provided an additional source of income and job creation. It all started   “Another farming tourism project we began I call Paying Forward
in 1992 when the mountain was engulfed in flames, wiping out the           Apple Picking. After a picking season, you’ll still find a good amount
wild proteas, which were a major source of their income at that stage.     of fruit left on the trees, missed by the pickers. The guests are then
All that was left was the rugged road used by the 4×4 truck drivers to     free to pick all they want, on condition that they give half of their
transport the flower pickers up and down the mountain.                     ‘harvest’ to the less fortunate. The land gives, and we must give
With Didi on the bulldozer, they extended the track all the way to         back,” Didi says, sitting back and smiling.
the canyon close to the top of Matroosberg, to become what is              It was great to meet someone with a purpose, from a family that’s
today one of the most challenging and popular 4×4 trails in the            so driven. Didi is definitely the new
Western Cape, and reckoned to be amongst the top three in the              generation adventurous apple farmer. GERRIT RAUTENBACH

                                                                                 APRIL/MAY 2019 | INDUSTRY NEWS   13
Onder: By Sandrivier het die groep
                                                                                                                die nuutste tegnologie ervaar.

Bo: Die Noordelike Provinsie-
studiegroep.

Noordelike Provinsie-
studiegroep
D
     ie Noordelike (Limpopo) produsente kom elke vier tot ses
     weke bymekaar om spesifieke onderwerpe aan te pak en
     kundiges se insette te hanteer, ten einde produksie en mark-
geleenthede te optimiseer.
Hulle het einde verlede jaar versoek dat so ‘n studiebesoek ook            Die groep besoek De Fynne Kwekery.
aan die bedryfstrukture en produsente in die Wes-Kaap gereël
word om eerstehandse blootstelling van die spektrum en bedryfs-            Daar is ook besoek afgelê by Sandrivier-landgoed waar die groep ‘n
dienste te kry. Dié steenvrugprodusente-studiegroep wou ook die            toer deur die pakhuis en boorde meegemaak het.
geleentheid gebruik om uit mede-produsente se praktyke in die              Die produsente het ook De Fynne Kwekery besoek, ’n Steenvrug
tradisionele gebiede te leer. Derhalwe die vierdag blootstelling           JMF bygewoon en die dag by die plaas Bergvliet afgesluit. Culdevco
aan navorsing, plantverbetering, nuwe kultivars en evaluasie, die          en Provar het die manne ook aan nuwe kultivars laat proe. Die
vrugtevliegprogram en handel-/mark-kwessies.                               studiegroep was dit eens dat hulle heelwat geleer het, maar was bly
Die groep se Januarie-besoek het verskillende bedryfsorga-                 om weer die pad te vat na Bloubulland.
nisasies soos FruitFly Africa, LNR-Infruitec, Hortgro Science en
SAPO ingesluit.                                                            TEXT AND PHOTOGRAPHS: CARMÉ NAUDÉ

                                14   TEGNOLOGIE HORTGRO | APRIL/MEI 2019
BIED 'N WETENSKAPLIKE BENADERING TOT
          GRONDBEROKING MET AGROCELONE NE TM

                      WAT IS                                                                DOEL VAN
                  GRONDBEROKING?                                                         GRONDBEROKING?
Dit is die disinfestering en disinfeksie van grond deur middel van    Grondberoking word voor plant gebruik om herplantsiekte wat
     die toediening van geregistreerde berokingmiddels soos           deur patogene en aalwurms veroorsaak word te beheer. Dit sal
                          Agrocelone NE™.                                        ook ontkiemende onkruidsaad beheer.

                                                  WAT IS AGROCELONE NE™?
     Agrocelone NE™ bestaan uit twee aktiewe bestanddele, 1,3 Dichloropropeen en Chloropikrien. Agrocelone NE™ het `n unieke
                                       formulasie wat toediening makliker en veiliger maak.

  WATTER TOERUSTING WORD BENODIG?                                                 HOE WORD DIT TOEGEDIEN?
 NexusAG se span van gelisensieërde pesbeheer operateurs maak          Agrocelone NE™ kan deur drip-besproeiing of deur middel van ’n
  gebruik van die nuutste vloeimeters, pomptoerusting en GPS         trekker-ondersteunde tand-implement 30 – 90 cm diep in die grond
gedrewe trekkers vir die akkurate toediening van Agrocelone NE™.        toegedien word. Grond word met plastiek geseël na toediening.

                            NEXUSAG BIED DIE VOLGENDE:
                                                                     • Unieke formulasie:
                                                                       Agrocelone NE™
                                                                     • Opgeleide personeel
                                                                     • Nuutste toedieningstegnieke
                                                                       en -toerusting
                                                                     • Dubbele kalibrasie-sisteem vir
                                                                       akkurate toediening

                KONTAK JOU NAASTE NEXUSAG GEWAS ADVISEUR VIR ‘N VOLLEDIGE KWOTASIE.
                                              021-860 8040              www.nexusag.net
                                                                     APRIL/MAY 2019 | TECHNOLOGY HORTGRO   15
C
Last season’s drought                rises can come into our lives, despite our   irrigation during the dry season.
taught us so much                    best efforts to avoid them, and often        “None of us will ever think about water in the same
more than we                         they can be turned into an opportunity.      way again,” says Müller. “In the past there were
already know about                   These words of wisdom come from              certain speculations that people now know to be
                                     Dutoit Agri’s Research and Development       true, like the perception that you can’t really use
water management,
                                     Manager, Willie Kotze. If you look at        drip irrigation to produce apples and pears. I think
irrigation, mulch-
                                     crises from a different perspective, you     this idea has now been proven to be false.”
ing and other water      might learn how to take advantage of them – as           The general feeling, says Steyn, is that given the
efficiency techniques.   in the case with the previous season’s drought, he       challenging circumstances, the industry did not
But most importantly,    reminisces.                                              do too poorly, and this is largely thanks to good
it demonstrated          “The drought forced us to sharpen our knowledge.         management, thorough planning and various
the resilience of        We learnt to manage with less water and to reduce        interventions.
the deciduous fruit      waste,” says Kotze.                                      Whether the strategy was drip irrigation, mulching
industry.                According to Wiehann Steyn, Assistant General
                                                                                  or other techniques, extensive planning was vital
                                                                                  to ensure that last year’s production was a success.
GRETHE BESTBIER          Manager at Hortgro Science, the most important
                                                                                  Dutoit Agri devised a solid strategy ahead of the
spoke to several         lessons learnt were in the area of irrigation. “There
                                                                                  year, says Kotze, using drought management tips
technical advisors       were many ways that producers stretched irrigation
                                                                                  published by Hortgro. Its starting point was setting
                         during the drought. Some growers simply allowed
about lessons learnt                                                              up a ‘water budget’ for the season, to determine
                         longer intervals between irrigations, or used less
during the 2017-18                                                                which orchards would be fully irrigated and where
                         water during each irrigation. Many already used
drought.                                                                          they would save water. Orchards that they had
                         mulch to reduce surface evaporation.”
                                                                                  planned to remove in the near future, because of
                         Kromco’s Technical Manager, Anton Müller, says           low profitability, were pulled out. Where this was
                         it was crucial to shift the focus increasingly to drip   not the case, they reduced the harvest drastically,

                         16   BEDRYFSNUUS | APRIL/MEI 2019
according to the water availability. With young
trees, however, irrigation was non-negotiable –
these trees are the future and couldn’t be left with
too little water.
They also relied on water saving techniques such as
short radius irrigation, ensuring that only the effec-
tive root depth is reached, and very importantly,
invested in mulching. With a long-term strategy in
place, their immediate goal was the conservation of
the orchards. “Putting the right technology in place
during the drought was expensive, but we reaped
the benefits,” says Kotze.
This does not mean that they were immune to the
drought’s impact. According to Kotze, Dutoit Agri
saw increased cases of large fruit with bitterpit
in Golden Delicious apples, more prominent tips
and uneven maturing in some stone fruit, as well         of extra people then need to be absorbed and
as a few cases of fast-decreasing firmness during        accommodated by the cities, which would present
storage of some pears and Royal Gala apples.             social and welfare problems.
Good chemical thinning early in the season greatly
                                                         “I think the interconnectedness of things, like where
contributed to good fruit size overall. Only in
                                                         water and food come from, is a positive lesson for
extreme cases did orchards bear fruit where size
                                                         the general public,” says Steyn.
was a problem.
                                                         Cape Town residents have reduced their collective
Looking to the future and the possible knock-on
                                                         daily water use from 1.2 billion to about 600 million
effects of the drought, Müller says that it is hard
                                                         litres, and consequently compete less with agricul-
to predict the drought’s future consequences by
                                                         ture for water supply (in theory). However, even
just looking at the trees. He does not expect major
                                                         though people are now more informed, the problem
long-term effects, and Kotze agrees.
                                                         is still far from being fully solved. Water is still our
“Most of the orchards recovered well after the           single biggest restriction in the Cape, and even more
drought and the carry-over effect is limited,” says      needs to be done to assure its sustainability.
Kotze. “There is a small percentage of orchards with
                                                         “If you look at the Ceres area, there is a lot of land
a lighter harvest this year. I guess it is a combina-
                                                         available to plant apples, but you cannot plant more
tion of lower reserve status, as well as the heat
                                                         because there is not enough water. Water has always
wave in October that delivered a weaker set. There
                                                         been a limitation,” says Steyn. “We know it will rain
are also single cases where orchards’ growth and
                                                         less in the future and we know the city of Cape Town
root volume were damaged. This is mostly on sites
                                                         will grow. So, the demand for water will increase,
where water was restricted for the past three years.”
                                                         while its supply is decreasing. This means that we
According to Steyn, the drought bore lessons for
                                                         can’t continue doing what we are doing at this stage.”
both the agricultural industry and the general
                                                         Even if it was just reinforcing what was already
public. Where people from cities and urban areas
                                                         known, lessons learned during times of drought
previously might have thought it a good idea to
                                                         should be remembered and implemented even
cut off water supplies to farms and simply import
                                                         in times of abundant rain, as water shortages are
fruit, the drought helped them to understand the
                                                         the reality in the agricultural community of SA. It
complexity and importance of agriculture in our
                                                         is a permanent fixture, and the crisis has definitely
country. As Steyn explains, it is not that simple.
                                                         helped prepare the industry to map the way forward.
Without water, trees can suffer damage that may
last for seasons to come. If agriculture suffers, so      “A positive thing is that our industry is much more
do jobs, the government, shipping companies,             resilient than people think,” says Steyn. “A shake-
irrigation companies, as well as many small towns        out (such as the drought) every now and then, may
that have agriculture as their mainstay. Thousands       actually benefit the industry in the long run.”

                                                                                APRIL/MAY 2019 | INDUSTRY NEWS   17
THE IMPACT OF THE 2017-18 DROUGHT:

A case study using
FruitLook data

                                                                                                                                                                                   PICTURE: CAREN JARMAIN
RUBEN GOUDRIAAN1, CAREN JARMAIN2,
MECHTELD ANDRIESSEN1, KRISTIN ABRAHAM1,                                                                    Figure 1. Dust storm in Theewaterskloof Dam, the biggest dam in
ROAN NAUDÉ, PETER KEUCK3                                                                                   the Western Cape responsible for feeding water to Cape Town, as
                                                                                                           well as the local agricultural community.
eLEAF, www.eleaf.com, ruben.goudriaan@eleaf.com, Wageningen, the Netherlands
1

2
    Independent consultant, cjarmain@gmail.com                                                             39% , by far not enough to fulfil all domestic, industrial and
Western Cape Department of Agriculture, www.elsenburg.com, peterk@elsenburg.com
3                                                                                                          agricultural water demands expected during the SA summer.
                                                                                                           As a result, firm measures were implemented to avoid potential

D
                                                                                                           disaster. New water sources had to be found, water losses (leak-
         uring the 2017-18 summer, dwindling dam levels in the
                                                                                                           ages) curbed, and firm water restrictions implemented.
         Western Cape became the focus of many conversations. Dust
                                                                                                           The drought had a devastating impact on irrigated agriculture
         storms could be seen clouding the sky above bare dams, as
                                                                                                           during the 2017-18 season, so much so that an estimated
         shown in Figure 1. Three consecutive dry winters caused dam
                                                                                                           R6 billion in economic losses was incurred, and 30 000 jobs were
         levels to drop to record-low levels. At the end of October 2017
                                                                                                           lost in the agricultural sector 1,2.
the average dam storage level in the Western Cape was approximately
                                                                                                           During the 2017-18 summer production season water restrictions
                                                                                                           of 50% were implemented in the Breede Valley, 60% in the Berg
                 FruitLook in numbers in 2017-18                                                           River and Riviersonderend region, and various other regions and
                                                                                                           85% or more in the Lower Olifants River Valley3. In response to
            1    The FruitLook program is unique to the Western Cape.
                                                                                                           the water limitations, crops in many areas were removed and
            5    The water management areas covered by FruitLook include the Olifants-Doorn region,        shredded to produce mulch for fields that were to be kept in
		               Berg, Breede, Gouritz and Fish to Tsitsikamma.                                            production. For orchards and vineyards, this approach will have
            9    FruitLook datasets describing crop growth, crop water usage and nitrogen content.         a long-term impact on productivity, as it will take a very long
                                                                                                           time to replace the trees and vines that were removed. Where
          50     Open FruitLook training sessions that were provided at Elsenburg and in various other
		               regions in the Western Cape during FruitLook 2017-18.                                     such extreme actions were not followed, an insufficient amount
                                                                                                           of water resulted in a reduction in yield quantity and quality. It is
          63     Percentage of users who have indicated that FruitLook made their water management
                                                                                                           further expected that the absence of post-harvest irrigations will
		               at least 10% more efficient.
                                                                                                           negatively impact production in the 2018-19 season.
          74     Percentage FruitLook users that are farmers. FruitLook is also used by consultants,
                                                                                                           For this article the impact of the 2017-18 drought on the West-
		               scientists, students and many others.
                                                                                                           ern Cape agricultural sector is assessed using satellite-based
         218     The amount of raw satellite images processed to create the FruitLook data products for    data products available via FruitLook (www.fruitlook.co.za).
		               the 2017-18 season
                                                                                                           The spatial FruitLook data is used to identify the impact of the
         776     Number of users in 2017-18                                                                drought in two distinct regions: the Groenland Water Manage-
                                                                                                           ment area and the Lower Olifants Water Management Area. The
       2011      The year FruitLook became available to farmers in the Western Cape. The data of earlier
		               seasons is still available via the FruitLook website for users.                           Groenland area is relatively wet and indications are the impact
                                                                                                           of the drought on production levels was minimal during the
      16 507     Fields ordered during 2017-18
                                                                                                           2017-18 season. The Lower Olifants area faced a water deficit
      53 049     Hectares ordered during 2017-18                                                           of approximately 85% at the start of the season4. The results
      85 000     The approximate amount of fruit fields available for use on FruitLook                     from this analysis displays the disastrous impact of a drought,
                                                                                                           but equally shows how varied this impact can be in one single
     200 000 The approximate amount of fruit hectares available on FruitLook
                                                                                                           province.

                                              18       BEDRYFSNUUS | APRIL/MEI 2019
Figure 2. Actual Biomass
                                                                                                                         Production for a table grape
 2                                                      3                                                                field covering the period
                                                                                                                         21 February to 27 February
                                                                                                                         2018. The actual biomass
                                                                                                                         production is provided in kg/
                                                                                                                         ha, providing a quantita-
                                                                                                                         tive indicator of dry matter
                                                                                                                         growth in a field. The
                                                                                                                         biomass production includes
The FruitLook Project                                       Look dataset. The information behind the FruitLook
                                                            portal is available for all major agricultural areas in      roots, shoots, leaves, fruit
Since 2011 farmers in the Western Cape have had
                                                            the Western Cape, as can be seen in Figure 3.                and all in-between.
access to satellite-based crop monitoring informa-
tion via FruitLook (www.fruitlook.co.za). Complete          FruitLook data was used to assess the effect of the
                                                                                                                         Figure 3. The data behind
funding by the Western Cape Department of                   drought on production levels within the Groenland
                                                                                                                         FruitLook consists of raster
Agriculture makes it possible to offer the use of           and Lower Olifants water management areas. The
                                                                                                                         maps describing production
FruitLook free of charge for the end user. FruitLook        accumulated biomass (= total growth) production
                                                                                                                         in the entire Western Cape
enables the efficient use of water resources by             during the 2016-17 season is compared to the
                                                                                                                         on a weekly basis. In this
farmers via the provision of smart satellite-based          accumulated biomass production during the
                                                                                                                         case, a biomass production
data products. More than 750 users monitored                2017-18 season, specifically for the months October
                                                                                                                         map shows the vegeta-
over 50,000 ha of agricultural land via FruitLook,          to April, thereby covering the main fruit production
                                                                                                                         tion growth from 25 to 31
between August 2017 and April 2018.                         season. By expressing the accumulated biomass
                                                                                                                         October 2017.
Satellites are integral to the success of FruitLook         for the 2017-18 season in relative terms to the
operations. Near-infrared light, visible to insects         2016-17 season, the impact of drought is shown as
but not to humans, can be captured via modern               a percentage reduction of biomass production from
sensors mounted on satellites. Via an ingenious             2016-17 to 2017-18.                                             www.fruitlook.co.za
combination of satellite data sources, weather                                                                              info@fruitlook.co.za /
information and smart models, data is created each
                                                            Assessing drought impact via FruitLook data
week, describing crop growth, water consumption                                                                             help@fruitlook.co.za
(= actual evapotranspiration) and plant nitrogen            Groenland is located in the south of the Western
content. Through the FruitLook portal this data             Cape, near Grabouw, and Eikenhof is the main dam                 (+27) 074 322 6574
has been helping farmers to assess crop develop-            in the Groenland water management area. The
ment, and to take efficient and timely mitigation           water in this dam is primarily used for irrigated fruit
measures where needed, leading to an improved               farming. The Groenland WUA, allowing for a 10%
crop production process. In the context of water            curtailment, could adequately supply water in the
management, farmers can use FruitLook for assess-           demand of their users. The major irrigated crop
ing and comparing field water consumption, assess-          types in this region are pears and apples, with some
ment of water shortages and crop stress, getting an         wine grapes and stone fruit also present in the area.
indication of efficient water use, probe placement          When comparing the 2016-17 production season
and interpretation and detection of leakages.               with the 2017-18 production season, accumulated
Figure 2 shows biomass production for a table               biomass production figures are relatively similar. A
grape field as visible on the FruitLook web-portal.         comparison was made on a field-by-field basis for
The image clearly displays in-field variation in            4 302 fields covering close to 9 000 hectares. This
growth. Variation in biomass production can be due          comparison is visualised within the histogram for
to a myriad reasons, including differences in soil or       the Groenland area shown in Figure 4.
disease, fungi or other problems within the crop            The histogram shows a normal distribution and the
production process. Figure 2 shows a single field,          average difference between 2016-17 and 2017-18
each pixel represents an area of 20 x 20 m. Analysis        is almost 0%. This means, for the two years consid-
exceeding field scale is also feasible via the Fruit-       ered in the Groenland area, the amount of fields

                                                                                   APRIL/MAY 2019 | INDUSTRY NEWS   19
which showed an increase in growth (biomass production) is similar to the amount
                                                                of fields showing a decrease in growth. For more than 2/3 of all fields in the region,
                                                                the difference in accumulated biomass production between the 2017-18 and the
                                                                2016-17 production season was less than 10%. It also indicates the that the amount
                                                                of fields in production is relatively stable: almost as many fields show a sharp
                                                                decrease in production as there are fields showing a sharp increase. According to
                                                                the histogram this water management area displays little to no detrimental effects
Figure 4 Histogram showing impact on actual biomass
                                                                of drought. This suggests that this area had adequate water for plant growth and
production due to the effect of the 2017-18 drought in
                                                                that the data reflects the fact that minimal water conservation measures were
the Groenland water management area. No particular
                                                                needed in this area.
impact of drought is visible.
                                                                This is confirmed in Figure 5, showing the drought impact on a map, where
                                                                vegetation growth in 2017-18 is expressed in relation to 2016-17. Most fields show
                                                                little drought impact (yellow), meaning that production during 2017-18 is similar
                                                                to 2016-17. The data suggests that some orchards were taken out (in red), but
                                                                also that new fields were planted or came into production (dark green). Although
                                                                the data considered in this assessment shows vegetation growth (total biomass
                                                                production) and not crop yield, it would indicate a close to average production
                                                                season, compared to the year before.
                                                                A similar assessment for the Lower Olifants water management area (LORWUA)
                                                                tells a completely different story. The LORWUA region is highly dependent on the
                                                                Clanwilliam dam, which feeds water through a system of canals to the water users
                                                                downstream. In this area 90% of all irrigated fields are under wine and table grape
Figure 5 Map showing impact on actual biomass
                                                                cultivation. Table grapes are particularly vulnerable in drought conditions.
production due to the effect of the 2017-18 drought in
the Groenland water management area. No particular              At the start of the 2017-18 season, the Clanwilliam Dam was filled to only 40% of its
impact of drought is visible on the biomass production          capacity, prompting the introduction of major water restrictions for irrigated crop
figures. The dark red fields were likely removed over the       production. Under 20% of the normal water quota was made available to producers.
past season. Simultaneously, the dark green fields are          The data clearly shows the dramatic consequences of a season experiencing a
likely new in production.                                       severe drought. The histogram (Figure 6) displays the effect of the 2017-18 drought
                                                                by comparing the biomass production figures to that from 2016-17. Close to
                                                                15 000 ha was analysed covering 5 027 fields. On average, nearly 25% less biomass
                                                                was produced over the entire Lower Olifants water management area. This
                                                                perceived drop in production is confirmed by the SA Wine Harvest Report 2018
                                                                from Vinpro: low water availability from the Clanwilliam dam led to reduced crop
                                                                vigour, smaller canopies and increased water stress5. The number of fields that
                                                                show a (close to) 100% reduction in growth is concerning, because it indicates the
                                                                removal of vineyards or their complete die-off.
                                                                Figure 7 maps this significant decrease in crop growth (biomass production) result-
                                                                ing from decreased water availability. Almost all fields visible on the map show a
                                                                drop in production figures. The fields coloured in deep-red are likely cleared.
                                                                Assuming a drop larger than 90% indicates permanent removal of the crop, based
Figure 6 Histogram showing impact on actual                     on the FruitLook data it is estimated that close to 200 fields were cleared over the
biomass production due to the effect of the 2017-18             course of the 2017-18 season. This accounts for close to 5% of all vineyards and
drought in the Lower Olifants water management                  orchards in the region. At the same time almost no darker green fields are visible,
area. Strong impact by drought is visible.                      meaning there were nearly no new plantings during the 2017-18 season. The

                                20    BEDRYFSNUUS | APRIL/MEI 2019
histogram displayed in Figure 6 highlights this too: a large part of the fields shows
a -90% drop (or more) in biomass production, while almost no fields show a sharp
growth increase between the two years.
Adding to the difficulties stated above, there was no water available to produc-
ers for post-harvest irrigation. The impact of this still remains to be seen during
the 2018-19 season. The combined effect of decrease in productive area and the
                                                                                             Figure 7 Map showing impact on actual biomass
absence of post-harvest irrigation means the 2017-18 drought will be felt for years
                                                                                             production due to the effect of the 2017-18 drought in
to come in this region.
                                                                                             the Lower Olifants water management area. A strong
                                                                                             reduction in biomass production is visible for almost
Conclusion                                                                                   all production fields. Additionally, many fields show a
Satellite-based data is extremely useful to assess the impact of droughts. The               (close to) 100% decline in growth, which means these
effectiveness of doing so is shown within this article: although the causes, effects         fields are likely cleared.
and predictions on the 2017-18 drought made headlines throughout the West-
ern Cape, satellite imagery shows the agricultural impact of the drought varied
                                                                                                 FruitLook 2018-19 provides data from 1 August
strongly between regions. In Groenland, sufficient water was available, enabling
the farming community to run a relatively normal season. In stark contrast, farmers
                                                                                                 2018 to 31 July 2019 and can be used for planning,
in the Lower Olifants region were watching the sky expectantly for rainfall that                 monitoring and evaluating farming activities:
never came. As the FruitLook data analysis shows, the farms in the Lower Olifants                PLANNING: FruitLook data can be used to draw up
region were severely impacted during the 2017-18 production season.                              water budgets and prioritise water allocations in
It underlines the vital importance of available water as the resource most critical              terms of field water use efficiency.
to agricultural production. Climate models predict a gradual to rapid change in                  MONITOR: FruitLook data can assist with water
climatic conditions and an increased likelihood of extreme weather conditions                    management (how much water should be applied
like hail, flooding and prolonged droughts in the Western Cape. Agriculture, and                 where and when), probe placement, selective
wine and fruit production in particular, are vulnerable to this changing of the                  sampling prior to and during harvesting and
climate and additional stress from drought on the already limited water supplies. In             general problem detection through deviations
combination with significant non-climatic pressures, like increasing competition for             in the spatial pictures and data trends, and in
water from the urban and industrial sector, climate change forms a potent threat to              subscribing to FruitSupport.
agricultural sustainability.                                                                     EVALUATE: FruitLook allows users to do a post-
To effectively mitigate the challenges of the future, the agricultural sector needs to           seasonal analysis, relating crop yield to the Fruit-
find ways to access more water and at the same time, irrigate more efficiently and               Look data, and to analyse changes implemented.
with a higher precision. More water might be accessed via expensive measures,                    Interested to learn more? Hands-on training on Fruit-
like the introduction of new dams, increasing the storage of existing ones, and                  Look is offered for optimal use of this program. Train-
increasing groundwater abstraction reducing vulnerability to drought. Simultane-                 ing sessions are presented at Elsenburg free of charge,
ously, fresh water is ultimately a limited resource and the efficient use of water in            visit the FruitLook website for more information.
irrigation is essential for a sustainable (agricultural) future. This is where tools like
FruitLook can help - now, and in the future.
                                                                                             1
                                                                                              Informing the Western Cape agricultural sector on the 2015-2017 drought, A
Fortunately, the Clanwilliam Dam was completely refilled during the winter of                Drought Fact Sheet. Western Cape Department of Agriculture, November 2017.
2018, making the future of agriculture in the Lower Olifants region a lot brighter           2
                                                                                              https://www.dailymaverick.co.za/article/2018-04-23-western-cape-drought-
than it seemed a few months ago. This is also true for most regions in the province          impact-hard-long-term-and-requiring-tough-intervention/

where the water situation at the start of the 2018-19 production season was less
                                                                                             3
                                                                                              http://www.wwf.org.za/water/?25441/Agricultural-water-file-Farming-for-a-
                                                                                             drier-future
dire than the previous year. It brings hope and perspective – there are better times         4
                                                                                              http://www.fruitnet.com/eurofruit/article/175645/olifants-river-asks-water-
to come. At the same time areas like the Little Karoo and Central Karoo continue to          questions
face drought challenges. As such the lessons learned from last year(s) remain vital:         5
                                                                                              South African Wine Harvest Report 2018 – Big challenges in the vineyards,
water is life, let’s use it wisely and responsibly.                                          big surprises in the cellar. VINPRO, in collaboration with SAWIS, May 2018.

                                                                                    APRIL/MAY 2019 | INDUSTRY NEWS       21
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