ERADICATING BOVINE TB FROM KAIKOURA - OSPRI
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ERADICATING
BOVINE TB FROM
KAIKOURA
JULY 2018 | VERSION 2.0
TB MANAGEMENT
AREAS
TMA Boundary
The TBfree programme aims to
control and eventually eradicate
bovine tuberculosis (TB) from
New Zealand by 2055.
We use possum control, along with
regular herd testing and movement
restrictions, to achieve this objective.
Information gathered from wild animal
surveys, recent and historic findings
of TB in wild animals, herd testing
results and the operational history
of the region is used when planning
operations.
The TBfree programme is delivered
through TB management areas
(TMAs). These areas were created
based on the likely or possible
presence of TB in wildlife, similar
habitat features, known disease
patterns, geography and control
history. Each TMA has a specific
TB control plan designed to eradicate
TB as effectively as possible.
A TMA is made up of one or more
Vector Control Zones (VCZs) within
which possum control or wildlife
provided are provisional and subject sparsely-treed farmland near the
survey operations may be carried
to consultation. township, scrub and native bush
out from year to year, depending
areas such as at the northern Puhi
on wild animals present, habitat,
progress toward TB eradication
and available funding.
KAIKOURA Puhi Valley end and around Goose
Bay, and steep hills and mountains
The Kaikoura TMA covers 104,378 inland. Altitudes range from sea level
This notice provides an overview of TB ha along the coast from Conway to up to the ridge line of the Seaward
control work planned for the Kaikoura Clarence River. The area includes Kaikoura Range with peaks between
TMA. It is not a formal notice of any Kaikoura township and Puhi Puhi 1400–2300m. The lowest pass is
specific operation. All operation dates Valley. The habitat includes flat, approximately 950m.
TBfree is an OSPRI programme ospri.co.nz 0800 482 463
population, to minimise the risk of the
disease spreading through wild animal
populations and onto farmed cattle
and deer and to ensure further good
progress towards disease eradication.
PIG SURVEY
Before an area can be classed as
TB-free, surveys are used to assess
if TB is still present in wildlife. While
possums are the main source of
infection from wildlife it can be
difficult and costly to detect TB in
possum populations. Pigs are good
indicators of TB in possums because
they scavenge widely, so are likely
to get TB from eating TB-infected
KAIKOURA in possums by 2040. We aim to have
eradicated TB from New Zealand
possum carcasses. They can’t maintain
TB within their own population, so if
TB HISTORY by 2055. they are infected, it means it’s from
The Kaikoura TMA has a history of another species. Pig survey results will
TB in domestic herds and wildlife TARGETING help us to tell if TB is still in the area
POSSUMS
spanning the last 20 years. and whether further possum control
work needs to be done.
CONTROL To eradicate bovine TB from possum
populations, possum numbers need
HISTORY to be kept extremely low – around
one to two animals every ten hectares.
Ground based possum control
has previously been undertaken Previous possum control and
in the Hapuku Buffer and Kowhai livestock disease management has
Swyncombe areas. The Hapuku dramatically reduced the number
Buffer operation and the Kowhai of infected herds in the Northern
Swyncombe operation were last Canterbury/Marlborough region.
completed in 2017. However monitoring has shown that
further control work is needed in the
Pig surveys were undertaken in the © Matt Winter
Kaikoura area to reduce the possum
Big Hau and Oaro blocks during 2016
and 2017.
Aerial possum control has previously
been undertaken in 2016 in the
OPERATIONAL TIMEFRAME
Kowhai Swyncombe operational block Planned control and surveillance management activities
over approximately 15,400 ha. are outlined in the table below.
Some areas such as Big Hau have TYPE OF WHEN?* HOW MANY WHERE?
had very little or no control. CONTROL HECTARES?
Ground Control 2018/2019 40,000 Hapuku Buffer, Kowhai
ERADICATION Swyncombe
GOALS Pig Survey
Ground Control
2018/2019
2019/2020
9,000
27,000
Hapuku Buffer, Big Hau
Hapuku Buffer, Kowhai
OSPRI’s main goals for TB control Swyncombe
in the Kaikoura area are:
Pig Survey 2019/2020 9,000 Hapuku Buffer, Big Hau
• TB freedom in livestock by 2019
Ground Control 2020/2021 27,000 Hapuku Buffer, Kowhai
• TB freedom in possums and the Swyncombe
Kaikoura TMA by 2025. Pig Survey 2020/2021 9,000 Hapuku Buffer, Big Hau
These goals are in line with the Hectares under control are indicative only and may change after consultation.
national objectives of TB freedom * The operational year runs from 1 July – 30 June
in livestock by 2026, and TB freedom
TBfree is an OSPRI programme ospri.co.nz 0800 482 463
2018/19 OPERATIONS
TBfree is an OSPRI programme ospri.co.nz 0800 482 463
Following control work, the possum
population density may also be
monitored to assess the operation’s
success. From the results, we’ll be
able to tell if further possum control
work needs to be done in the area.
TESTING HERDS
Cattle and deer herds are monitored
for TB through a combination of herd
testing and carcass inspection at
slaughter. The frequency of testing
depends on the herd’s location,
management and TB history.
To check the testing frequency for
your property visit ospri.co.nz/dcamap
MOVEMENT
CONTROL
CONSULTATION There are many different types of
traps, such as leg hold or kill traps.
The Kaikoura TMA is in the Northern
OSPRI aims to ensure that Canterbury/Marlborough Movement
In choosing the right one, we will take
communities, land occupiers and Control Area. As a result, TB testing
into consideration ease of access,
land users are notified of planned set-up and maintenance time, animal is required for cattle and deer before
operations well in advance and have welfare factors and the potential risks they are moved to another herd
the opportunity to submit feedback to livestock, pets and native animals. or farm.
about any possible risks or sensitive On occasion our contractors may also
areas that need to be managed. use corflute chew cards or wax tags WHAT NEXT?
OSPRI will always seek the willing to identify possum populations where Dates and control methods for the
cooperation of land occupiers when control is required. proposed operations are provisional
TBfree programme work needs to be PIG SURVEY and subject to consultation. OSPRI
carried out on their land. contractors will be in contact with
Our contractors will collect wild pigs affected landowners and occupiers
Before any operations begin, affected for disease surveillance, using one
before any work commences.
landowners and occupiers will be of three proven methods. Pigs may
contacted and visited by one of be ground hunted, trapped or shot
our contractors. Depending on the from helicopters for post-mortem
methods used and the location of the examination. In some areas, a Judas
operations, consents may be required Pig operation may be used: a wild
from the Department of Conservation pig, ear-tagged with a transmitter,
and Ministry of Health. will lead hunters to other pigs. CONTACT
DETAILS
A selection of those pigs can be
shot and checked for the presence
THE METHOD of TB. Another method, Sentinel Pig
surveillance, involves releasing an OSPRI Christchurch office
GROUND CONTROL PO Box 8674
ear-tagged, disease-free pig into an
Our contractors will be using toxins area to scavenge local wildlife that Riccarton
and traps to carry out this possum may be carrying TB. The pig is later Christchurch 8440
control operation. recovered and examined to check P 03 363 3090
for TB infection. E vectornsi@ospri.co.nz
Different toxins are used depending ospri.co.nz
on the size and terrain of the
operational area. Toxins will either POSSUM Excell Biosecurity
P 0508 392355 or 0508 EXCELL
be placed in bait stations, stapled to
trees in biodegradable bags or hand-
POPULATION E nsi.excell@excell.co.nz
laid. Contractors will consult with ASSSESSMENT
landowners on which toxin will be Before control work is carried out an
used to ensure the safety of livestock, assessment of the wildlife population
pets and native animals. may be undertaken.
TBfree is an OSPRI programme ospri.co.nz 0800 482 463
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