2020 COMMERCIAL CRANBERRY PEST CONTROL RECOMMENDATIONS FOR NEW JERSEY - Bulletin
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E308
Cooperative Extension
Bulletin
2020 COMMERCIAL
CRANBERRY PEST CONTROL
RECOMMENDATIONS FOR
NEW JERSEY
Peter Oudemans (editor)
Specialist in Plant Pathology
Thierry Besançon
Specialist in Weed Science
Cesar Rodriguez-Saona
Specialist in Entomology
2020 CRANBERRY PEST CONTROL RECOMMENDATIONS FOR NEW JERSEY
Welcome to the 2020 cranberry recommendations. In this edition we are including more
information on development of cranberry in relation to pest control. It is very important to make
applications at the appropriate time to ensure maximum benefit and minimal side effects. Many
of our pesticides are no longer patented and are being replaced by generic materials. These are
often less expensive but careful attention should be placed on the label since the concentration of
active ingredient may change.
Also, please note that as the markets become more global, MRLs (maximum residue limits) play a
stronger role in pesticide choices and can affect how and where a product is marketed. The
pesticide label is the law but will only represent the national MRLs not global.
Tight bud Cabbagehead Bud elongation. Hook
Bud swell Bud break Roughneck Bloom
Terminology for Cranberry Bud Development and Growth from Workmaster, B.A., Palta,J.P., and Roper, T.R.
PESTS REMARKS MATERIALS RATE/A
GENERAL Cranberry tipworm is much less a problem on April-drawn bogs than on
May-drawn bogs. The rapid lush growth of bogs drawn in May encourages
infestations of tipworm. Early drawing, however, increases populations of
fruitworms and fireworms
Holding flood until early May can aid in reduction of fireworm and
cranberry fruitworm populations.
Rutgers Cooperative Extension -2-
2020
CABBAGEHEAD - PREBLOOM
PESTS Remarks MATERIALS RATE/A
Upright Dieback Begin at budbreak and Bravo WS 4 to 6.5pt
repeat 10-14 days later Champ Formula 2, 0.66 gal
Indar 2F 12 fl oz
Fairy ring Begin at cabbagehead Indar 2F 6 to 12 fl oz
and do not apply past hook Abound 15.5 oz
To effectively suppress Fairy Ring apply fungicide in sufficient water to wet the soil to
approximately 6” in depth. This translates to 8712 gallons/acre. See page 4 for detailed
instructions.
Blossom worm Altacor 3 to 4.5oz
Spotted fireworm Confirm 2F 16 fl oz
Sparganothis fruitworm Delegate WG 3 to 6 oz
Gypsy moth Diazinon AG500, 4E 2 to 3 qt
False armyworm Diazinon AG600 WBC 51.0 to 76.5 fl
oz
Spanworm Diazinon 50W 4 to 6 lb
Blackheaded fireworm Entrust SC 4 to 10 oz
Exirel 10 to 20.5 fl oz
Imidan 70W 1 to 4 lb
Intrepid 2F 10 to 16 fl oz
Lorsban 4E 3 pt
Lorsban 75WG 2 lb
Nufos 4E 3 pt
Orthene 97 1 lb
Rimon 0.83EC 12 fl oz
Spanworm
Gypsy moth
Blossom worm Avaunt 6 oz
Blackheaded
fireworm
Cranberry tipworm Diazinon AG500, 4E 2 to 3 qt
Remarks: Keep bees off bogs until 7 days after spraying Diazinon AG600 WBC 51.0 to 76.5 fl
except for Confirm 2F, Intrepid 2F, Delegate WG, and oz
SpinTor 2SC application. Sanding helps to control Diazinon 50W 4 to 6 lb
tipworm, Sparganothis, spotted fireworm and
cranberry girdler.
Rutgers Cooperative Extension -3-
2020
Rutgers Cooperative Extension -4- 2020
PRE-BLOOM SPRAY
PESTS Remarks MATERIALS RATE/A
Blunt-nosed Dangle stage but before Closer SC1 2.75-5.75 fl oz
leafhopper bloom. Diazinon AG500, 4E 2 to 3 qt
Diazinon AG600 WBC 51 fl oz
1 Do not apply this product at Diazinon 50W 4 lb
any time between 3 days Lorsban 4E 1.5 to 3.0 pt
prior to bloom and until after
petal fall
Lorsban 75WG 2 lb
Mites Agri-Mek SC (8% ai) 3.5 fl oz
Root rot When soil or reservoir Phosphite See below
temperatures reach 60oF Ridomil SL 1 to 1.75 pt
Ridomil Gold GR 20 to 35 lb
Ridomil Gold WSP 1.0 to 1.5 lb
A note on Phosphite fungicides: Phosphite (AKA phosphonate, phosphorous acid) based
fungicides are all similar in activity. None of these are effective as fertilizer because the phosphite
molecule must be converted to phosphate by soil bacteria before being useful to the plant. There
is no evidence that these materials provide any physiological benefit other than disease control.
There are several materials available (Prophyt, Reveille, K-Phite, Rampart, Confine-Extra, Fungi-
Phite, Phostrol, etc.) and the best way to compare these is by examining the label to determine
the pounds of phosphorous acid per gallon since this is the standard by which all products labelled.
Two examples are provided below with the concentration highlighted in yellow. Please be aware
that the labels can be quite different so PLEASE read the label for the product you are using.
Rutgers Cooperative Extension -5-
2020FUNGAL FRUIT ROTS For the most economical and efficient control of fungal fruit rot, three
categories for control have been established.
Control of cranberry fruit rot is achieved by proper timing and sequence of fungicide applications.
Timing is important because the fungi causing fruit rot tend to cause more infections that lead to
rot during the flowering and early fruit development. Sequence is important because different
fungicides can affect the plant differently during development. Specifically, chlorothalonil (e.g.
Bravo) can be phytotoxic to bloom but provides excellent protection during fruit development.
Also, recommendations differ among cultivars slightly. In general early bloom sprays work well and
will guarantee a residue at the site of action. The early timing given below is the latest you should
wait. Recent research has shown that combinations of Indar and Abound provide excellent disease
control in early applications although new fungicides such as Proline are replacing Indar. In general,
for New Jersey, applications begin in mid-June and are complete by late-July. Oso and PHD are
newly registered, old fungicides which can play a role during the late season especially on
susceptible cultivars. In the section below you will find specific recommendation options for fruit
rot control.
This scheme will be useful for growers who cannot use chlorothalonil products
1. Early Black Begin applications at 30 to 60% bloom. Follow with at least two
Mullica Queen additional applications at 5- to 10- day intervals
2. Stevens Begin applications at 30 to 60% bloom. Follow with two - four additional
Crimson Queen applications at 5- to 10- day intervals
3. Ben Lear Begin applications at scattered bloom. Follow with a second application
Demoranville at 60% out of bloom and make at least two subsequent applications at
5- to 10-day intervals.
4. New and untested Begin applications at 30 to 60% bloom. Follow with two - four additional
varieties applications at 5- to 10- day intervals
Rutgers Cooperative Extension -6-
2020Fungicides labelled for fruit rot control
Fungicide REI (hrs) PHI (days) Rate/acre Max Amt/ season
(FRAC Group)
Indar (3) 12 30 12 fl.oz. 48 fl.oz.
Proline (3) 12 45 5 fl.oz. 10 fl.oz.
Abound* (11) 4 3 6-15.5 fl.oz 90 fl.oz.
QuadrisTop (3,11) 12 30 10-14 fl.oz. 42 fl.oz.
(see note below)
mancozeb* (M3) 24 30 3-6 lb 18 lb
Mankocide *(M3) 48 30 7 lb 21 lb
chlorothalonil* 12 50 4-6.5 pt 20 pt
(M5)
Ferbam (M3) 24 28 days post 6.1 lb 5 applications
mid-bloom
* Numerous formulations available. Read product label for specific instructions (see page 11)
Note: Mancozeb containing fungicides may inhibit development of anthocyanins and reduce fruit size. Chlorothalonil-
based fungicides can reduce fruit set when used during bloom.
Rutgers Cooperative Extension -7-
2020IN-BLOOM INSECT CONTROL
PESTS REMARKS MATERIALS RATE/A
Blossom worm, Confirm 2F 16 fl oz
Spanworm, Crymax, 1.0 to 1.5 pt
False armyworm, DiPel ES 1.0 to 2.5 lb
Gypsy moth, DiPel DF 1.0 to 1.5 lb
Blackheaded fireworm Intrepid 2F 10 to 16 fl oz
Cranberry fruitworm Intrepid 2F 10 to 16 fl oz
Unfortunately, there is still some open bloom when this treatment must be made. Waiting until all
blossoms have dropped may result in heavy cranberry fruitworm infestation.
FIRST POST-POLLINATION SPRAY - Remove bees before spraying.
PESTS Remarks MATERIALS RATE/A
Cranberry fruitworm, Altacor 3 to 4.5oz
Sparganothis Confirm 2F 16 fl oz
fruitworm Delegate WG 3 to 6 oz
Spotted fireworm Diazinon AG500, 4E, 2 to 3 qt
Diazinon AG600 WBC 54.5 to 76.5 fl oz
Diazinon 50W 4 to 6 lb
Entrust SC 4 to 10 oz
Exirel 10 to 20.5 fl oz
Intrepid 2F 10 to 16 fl oz
Lorsban 4E 3 pt
Lorsban 75WG 2 lb
Cranberry fruitworm Assail 30SG 4.0 to 6.9 oz
Knack 16 fl oz
Belay 4 fl oz
Blunt-nosed Actara 3 to 4 oz
leafhopper Assail 30SG 1.9 to 4.0 oz
Toadbugs Belay 4.0 fl oz
Other leafhoppers Closer SC 2.75-5.75 fl oz
Cormoran 9 to 12 fl oz
Diazinon AG500, 4E 2 to 3 qt
Diazinon AG600 WBC 54.5 to 76.5 fl oz
Diazinon AG600 WBC 54.5 to 76.5 fl oz
Lorsban 4E 3 pt
Lorsban 75WG 2 lb
Sevin XLR Plus, 4F 1.5 to 2 qts
Sevin 80 Solupak 1.8 to 2.5 lbs
Venom 2 to 4 oz
Rutgers Cooperative Extension -8-
2020Cranberry rootworm Immediately after removal of Admire Pro 7 to 14 fl oz
bees
Scarab grubs Belay 12.0 fl oz
Applications of imidacloprid (Admire Pro, Couraze 2F, Couraze 2F 16 to 32 oz
Macho 2FL, Alias 2F) are not permitted by air. Irrigate Macho 2FL 16 to 32 oz
target area with 0.1 to 0.3 inches before and after the Alias 2F 16 to 32 oz
application
This treatment can be made only during post-pollination season.
Cranberry rootworm Nematodes See label
SECOND POST-POLLINATION SPRAY
Fireworms, Insecticides same as above
Fruitworms,
Sparganothis
fruitworm
Phytophthora root See PHI for specific materials Phosphorous Acid See label
rot Ridomil Gold EC 1.0 to 1.75 pt
Ridomil Gold GR 20 to 35 lb
Ridomil Gold WSP 1.0 to 1.5 lb
Rutgers Cooperative Extension -9-
2020NEW BOG SPRAY
Cranberry flea beetle and Blunt-nosed Actara 3 to 4 oz
leafhopper Assail 30SG 1.9 to 4.0 oz
Belay 4.0 fl oz
Early July. Diazinon AG500, 4E 2 to 3 qt
Diazinon AG600 WBC 54.5 to 76.5 fl oz
Diazinon AG600 WBC 54.5 to 76.5 fl oz
Lorsban 4E 3 pt
Lorsban 75WG 2 lb
Sevin 4F 2 to 4 pt
Venom 2 to 4 oz
Blunt-nosed leafhopper Closer SC 2.75-5.75 fl oz
Cranberry flea Belay 4 fl oz
beetle
Leaf drop fungi Make two applications Indar 12 fl oz
after growth begins. Proline 5 fl oz
Begin June 15 and a
second on July 15
GIRDLER FALL REFLOW
Cranberry girdler Last week of September. Nematodes See label
Reflow for 7 days
Rutgers Cooperative Extension -10-
2020PESTICIDE USE RESTRICTIONS - CRANBERRY
PESTICIDE* REI PHI APPLICATION NOTES
Azoxystrobin* 4 hrs F 3 days 90 fl.oz maximum per season
Actara 12 hrs I 30 days 8oz of Actara/acre/season maximum
Admire Pro 12 hrs I 30 days 14 fl oz/acre/season maximum
14 fl oz/acre/season maximum; no aerial
Agri-Mek SC (8% ai) 12 hrs I 3 days
application; see label
Alias 2F 12 hrs I 30 days 32 oz per acre/season maximum
Altacor 4 hrs I 1 day 3 applications maximum
Assail 30SG 12 hrs I 1 day 5 applications maximum
Avaunt 12 hrs I 30 days 24 oz per acre/ season maximum
Belay 12 hrs I 21 days 12 fl oz/acre/season maximum
Beleaf 12 hrs I 0 days 3 applications maximum
Chlorothalonil* 12 hrs F 50 days 3 applications maximum
Closer SC 12 hrs I 7 days 17 fl oz/acre/year maximum
Confirm 2F 4 hrs I 30 days 4 applications maximum
Cormoran 12 hrs I 1 day 35 fl oz/acre/year maximum
Couraze 2F 12 hrs I 30 days 32 oz per acre/ season maximum
Do not make more than 2 applications per crop
Courier 12 hrs I 3 days
cycle
Crymax 4 hrs I 0 days
Delegate 4 hrs I 21 days 19.5 oz /acre or 6 applications per calendar year
Diazinon 24 hrs I 7 days 4 applications maximum
DiPel 4 hrs I 0 days
Entrust SC 4 hrs I 21 days 9 oz/acre/season maximum
Ferbam 24 hrs F 28 days post mid-bloom, 5 applications maximum
Exirel 12 hrs I 14 days 0.4 lb ai/acre/season maximum
Grandevo 4 hrs I 0 days Temporarily repels bees following application
Imidan 70W 24 hrs I 14 days 15.6 lb/acre/season maximum
Indar 2F 12 hrs F 30 days 4 applications maximum
Intrepid 2F 4 hrs I 14 days 64 fl oz/acre/season maximum
Knack 12 hrs I 7 days 2 applications maximum
Lorsban 75WG or 4E 24 hrs I 60 days 2 applications maximum
Macho 2F 12 hrs I 30 days 32 oz/ acre/season maximum
Mancozeb 24 hrs F 30 days See label for maximum allowable rates
Mankocide 24 hrs F 30 days 96 lb/acre/season maximum
Do not apply until petal fall. 30 fl oz/acre/season
Movento 24 hrs I 7 days
maximum
Nematodes --- 0 days Apply in late evening. Irrigate
Oberon 2SC 12 hrs I 3 days 3 applications maximum
Orthene 24 hrs I 75 days 1 application maximum
Oso 4 hrs F 0 days 78 fl. oz max/acre/season
4 applications maximum, see label for specifics and
Phosphites* 4 hrs F 3 days
note on page 5
Rutgers Cooperative Extension -11-
2020Proline 12 hrs F 45 days 2 applications max. No aerial applications
Pyganic EC 1.4 12 hrs I 0 days
3 applications maximum, 2 applications in
Quadris Top 12 hrs F 30 days
sequence maximum
Ridomil* 48 hrs F 45 days 3 applications maximum
Rimon 12 hrs I 1 day 36 oz/acre/season maximum
Sevin 12 hrs I 7 days 5 applications maximum
Venom 12 hrs I 7 days 8 oz/acre/season maximum
Venerate 4 hrs I 0 days Do not apply when bees are foraging
*Additional trade names:
Azoxystrobin: Abound, Aframe, Azaka, Azoxystar, Azoxyzone, Satori (there are at least 30 products)
Chlorothalonil: Bravo 90DG, Bravo 720, Bravo Ultrex, Echo, Ensign 720, Equus, Initiate, Praiz, Rialto, etc.
Mancozeb: Dithane DF, Dithane F-45, Dithane M-45, Manex II, Manzate DF, Penncozeb DF or WP
Phosphites: Prophyt, Reveille, K-Phite, Rampart, Confine-Extra, Fungi-Phite, Phostrol (and many more)
Metalaxyl/Mefanoxam: Orondis Gold B, Ridomil Gold GR, Ridomil Gold SL, Ultra Flourish, Metalaxyl 2E
AG, MetaStar 4S, ReCon 4F, MetaStar 2E
Rutgers Cooperative Extension -12-
2020CRANBERRY WEED CONTROL
Timing / Targeted Herbicide, Mode of Action Commercial
Precautions and Remarks
Weeds Code and Formulation Product Rate/A
PREEMERGENCE dichlobenil,
Annual and MOA 20
perennial (Casoron) 4 G 100 lb
broadleaf weeds DO NOT apply more than 100 lb product per
as well as grass Restricted entry interval acre per 12-month period
weeds (REI): 12 h
Preharvest Interval (PHI):
N/A
Apply in the spring prior to bud break. Fall applications are discouraged. Effective rate will vary with
target weed. Use lowest effective rate possible and avoid continual use to prevent yield losses due
to stress. Aerial application not suggested due to chance of overlap. Applications under sand or on
weak vines may cause injury. Avoid application during temperatures higher than 60 oF. Dichlobenil
needs to be watered in as soon as possible after application to avoid volatilization. Established
woody perennials may not be controlled.
PREEMERGENCE napropamide,
Annual grass and MOA 15
small seeded (Devrinol DF-XT) 50 DF DO NOT exceed 6 lb or qt/A in new plantings,
broadleaf weeds (Devrinol 2-XT) 2 EC 12 lb or qt/A in beds with sandy soil and 18 lb
or qt/A in peat beds per 12-month period.
new plantings 6 lb or qt
sandy beds 8 to 12 lb or qt
peat beds 12 to 18 lb or qt
Restricted entry interval
(REI): 24 h
Preharvest Interval
(PHI): N/A
Apply in early spring after the winter flood has been removed and before growth begins.
Instructions for application through sprinkler irrigation systems are also included on the label.
Napropamide is a germination inhibitor and will not control established weeds. Use air or ground
application. Material should be watered in through rain or irrigation within 4 days of application. For
best results, water in immediately after application. Effective against most grasses, sedges (Cyperus
dentatus), and some broadleaf weeds. The granular formulation of napropamide (Devrinol 10G) has
been discontinued. Existing supplies of Devrinol 10G may be used until the supply is depleted.
Rutgers Cooperative Extension -13-
2020Timing / Targeted Herbicide, Mode of Action Commercial
Precautions and Remarks
Weeds Code and Formulation Product Rate/A
PREEMERGENCE norflurazon,
Annual grasses, MOA 12
rushes, and (Evital) 5 G 40 to 120 lb DO NOT apply more than once per 12-month
sedges period.
Restricted entry interval
(REI): 24 h
Preharvest Interval
(PHI): N/A
Apply in fall at least 2 weeks before winter flood or in early spring after winter flood has been
removed and before weed growth begins. Injury may occur in areas where water puddles for several
days after flooding or heavy rains. Aerial application is not recommended due to chance of overlap.
Use lower rates where one or more of the following exists: open areas, sanded, well maintained,
sandy soils, young weeds, and stressed vines. Higher rates can be used under the following
conditions: mat of vines and weed stems, no irrigation, peat soils, established perennials, and
vigorous vines.
PREEMERGENCE mesotrione,
and MOA 27 DO NOT exceed 16 oz/A per 12-month period or
POSTEMERGENCE (Callisto) 4 SC 8 oz 8 oz/A per application.
Annual broadleaf DO NOT apply within 10 feet of surface water or
weeds, rushes, to “run-off”.
and sedges Restricted entry interval DO NOT apply within 48 hours of irrigation for
(REI): 12 h frost protection.
Preharvest Interval
(PHI): 45 days
Apply in late spring (May) before bloom and when irrigation for frost protection will not be needed
anymore. Treat newly planted bogs after cuttings have rooted, but before weeds have become
established. Repeat the application in early summer (July) after bloom. Optimum performance can be
obtained by ensuring an 8 to 12 hr rain-free period after application, followed by a light irrigation to
move the herbicide into the root zone. Heavy irrigation, such as for frost protection, can move the
herbicide below the root zone of target weeds and may result in reduced weed control or weed
control failure
Add NIS (nonionic surfactant) at 0.25% v:v or 1.9 tsp per gallon when cranberries are growing rapidly
and warm cloud humid weather encourages thin leaf cuticle to form.
Add COC (crop oil concentrate) at 1% v:v or 2.5 tsp per gallon when growth has “hardened off” or
when hot dry sunny weather encourages thick leaf cuticle to form.
Callisto causes bleaching (whitening) of the stems and foliage of susceptible plants. “Soft” growing
conditions, warm cloudy humid weather, during periods of rapid growth the week before Callisto
application and cold weather after application increase the possibility of observing the temporary
whitening. When observed, the cranberries recover with no long term effects.
Rutgers Cooperative Extension -14-
2020Timing / Targeted Herbicide, Mode of Action Commercial
Precautions and Remarks
Weeds Code and Formulation Product Rate/A
PREEMERGENCE quinclorac,
and MOA 10 8.4 oz DO NOT exceed 16.4 oz/A per 12-month period
POSTEMERGENCE (Quinstar) 4 L or 8.4 oz/A per spray.
Dodder, DO NOT apply by air.
loosestrife and Ocean Spray growers should consult with the
other broadleaf Restricted entry interval cooperative
and grass weeds (REI): 12 h before applying Quinstar 4L concerning the
Preharvest Interval company’s policy on Quinstar 4L as it relates to
(PHI): 60 days European exports.
Apply in late April or early May prior to dodder germination and attachment to control dodder and
many annual grass and broadleaf weeds during the late spring and early summer. Repeat the
application in early July after cranberry bloom for full season dodder and annual weed control, and
to control yellow loosestrife. No effect from the application of quinclorac will be observed the year
yellow loosestrife is treated. Control will be observed the following spring. Allow 30 days between
applications. Add COC (crop oil concentrate) at 2 pt per acre.
POSTEMERGENCE 2,4-D, DO NOT allow solution to drip onto vines.
Chairmaker’s MOA 10 DO NOT apply material in hot humid weather or
bullrush, (Weedar-64) 3.8 SL 2.4 pt when an air inversion exists as vine and
steeplebush, blossom injury can occur.
loosestrife,
morningglory, Restricted entry interval
leatherleaf, sweet (REI): 48 h
pepperbush, Preharvest Interval
dewberry and (PHI): 30 days
other woody and
broadleaf weeds
Use only the liquid amine form of 2,4-D as a wipe. Mix 1 part Weedar-64 to 4 parts water to make a
20% solution. Wipe mixture over the top of tall weeds. Use of a crop safe dye in the mixture is
recommended to mark where you have wiped. For best results, use in late June and July.
POSTEMERGENCE clopyralid, 24(c) Special Local Need Registration for Stinger
Broadleaf weeds MOA 10 DO NOT exceed 16 oz/A per 12-month period.
including vetch, (Stinger) 3 EC 2.67 to 8 oz DO NOT exceed 8 oz/A per spray for Stinger or 1
clover, wild bean (Spur) 3 EC 0.25 to 1 pt pt/A for Spur
dock, goldenrod, DO NOT apply by air or through the irrigation
aster, ragweed, system.
and thistle Restricted entry interval DO NOT overspray or to “run-off” as this type of
(REI): 12 h application may result in moderate or severe
Preharvest Interval crop injury.
(PHI): 50 days
Apply at or soon after weed emergence as a single or split application by a ground driven boom
sprayer calibrated to deliver between 20 and 50 gal/A.
Cranberries are more sensitive to clopyralid before bloom. Use the lower rate when applications are
made in the spring before bloom and the period of rapid shoot growth in late May and June. Use the
higher rate for most weed problems when applications are made in the summer after bloom. Apply
the highest labeled rate to control heavy aster, goldenrod, or Canada thistle infestations.
Read and follow all Specific Use Restrictions on the label.
Rutgers Cooperative Extension -15-
2020Timing / Targeted Herbicide, Mode of Action Commercial
Precautions and Remarks
Weeds Code and Formulation Product Rate/A
POSTEMERGENCE sethoxydim, DO NOT apply through the irrigation system.
Annual and MOA 1 DO NOT exceed 5 pt/A per 12-month period or
perennial grasses (Poast) 1.5 EC 0.5 to 2.5 pt 2.5 pt/A per spray.
Restricted entry interval
(REI): 12 h
Preharvest Interval
(PHI): 60 days
Consult label for optimal growth stage and rate for specific
grass type. Add crop oil concentrate at 2 pt/A or DASH HC at 1 pt/A. Allow 14 days between
applications.
Spot treatment: Add 1.25 oz Poast and 1.25 oz of crop oil concentrate (COC) per gal of water and
spray to wet.
POSTEMERGENCE clethodim, 2 EC: DO NOT exceed 32 oz/A per 12-month
Annual and MOA 1 period or 8 oz/A per spray.
perennial grasses (Intensity, Select) 2 EC 6 to 8 oz 1 EC: DO NOT exceed 64 oz/A per 12-month
(IntensityOne, Select Max) 1 EC 9 to 16 oz period or 16 oz/A per spray.
Do NOT apply between the “hook” stage and
Restricted entry interval full fruit set.
(REI): 24 h DO NOT apply on weeds under stress as this will
Preharvest Interval result in poor control.
(PHI): 30 days
Apply to actively growing grasses before tillering (annuals) and/or seedhead formation (perennials).
Consult the label for additional information on recommended size of grasses for treatment. Add
adjuvants according to label directions. Allow 14 days between applications.
Spot treatment: Add 0.66 to 1.33 oz of Select 2EC and 1.25 oz of crop oil concentrate (COC) per gal of
water and spray to wet.
POSTEMERGENCE glyphosate, DO NOT allow solution to drip onto vines.
NON-SELECTIVE MOA 9 DO NOT apply on weeds under stress as this will
Most annual (various brand and See label result in poor control.
broadleaves and formulations) DO NOT use, mix, or store in a galvanized
grasses, and a few container.
perennials
Restricted entry interval
(REI): see label
Preharvest Interval
(PHI): 30 days
Add 1 part glyphosate to 4 parts water to produce a 20%
solution. Use a wick or wipe applicator to wipe over the tops of weeds. Use of a food safe dye in the
mixture is advised to mark where you have wiped. Solutions should be mixed daily and stored out of
the sun for maximum effectiveness. Warm humid conditions are optimal for control. More than one
application per year is allowed. Rainfall or irrigation within 6 hours after application may reduce
effectiveness. Motorized wipe equipment should be operated at 3 MPH, slower for hard to control
weeds or where weeds are dense. For improved control, make two applications in opposite
directions. Minimal control of hardhack, leatherleaf, maple, and sweet pepperbush.
Rutgers Cooperative Extension -16-
2020Renovation on non-productive bogs – DO NOT APPLY TO GROWING CROP
Timing / Targeted Herbicide, Mode of Action Commercial
Precautions and Remarks
Weeds Code and Formulation Product Rate/A
PREPLANT metam-sodium, Soil fumigant. Vapam is a restricted-use
Most annuals and MOA 26 pesticide.
perennials (Vapam HL) 42% 50 to 100 gal DO NOT contaminate soil by mixing lower layers
in to the upper soil layer.
Restricted entry interval
(REI): 120 h
Preharvest Interval
(PHI): N/A
Follow label directions and restrictions. Use 50 to 60 gal/A rate for herbaceous weeds eradication and 100 gal/A rate for
woody plants eradication. Before and during application, soil temperature in the treatment zone should be between 40
and 90°F. Aboveground vegetation should be burned off or removed before application. Sand for planning should then
be applied. Incorporate to 8 inches deep. Drench with water and rototill before and after application for best results.
Planting must be delayed until fumigant has dissipated from the soil. See labels for specifics on the number of days to
wait before planting.
PREPLANT diquat, Non-selective herbicide.
Most annuals and MOA 22 DO NOT apply through the irrigation system.
perennials (Reglone) 2 SL 1.5 to 2 pt DO NOT use for spot treatment.
Restricted entry interval
(REI): 24 h
Preharvest Interval (PHI):
N/A
Follow label directions and restrictions. Reglone is a desiccant and should only be used as a directed spray during site
preparation prior to planting. Retreatment may be necessary for complete control of grasses and older established
weeds. Add NIS (nonionic surfactant) at 0.25% v:v or 1.9 tsp per gallon.
Rutgers Cooperative Extension -17-
2020NOTES
Mention or display of a trademark, proprietary product, or firm in text or figures does not constitute an endorsement by
Rutgers Cooperative Research & Extension and does not imply approval to the exclusion of other suitable products or firms.
© 2020 by Rutgers Cooperative Extension, NJAES, Rutgers, The State University of New Jersey.
Revised: January 2020
RUTGERS COOPERATIVE EXTENSION
N.J. AGRICULTURAL EXPERIMENT STATION
RUTGERS, THE STATE UNIVERSITY OF NEW JERSEY
NEW BRUNSWICK
Cooperating Agencies: Rutgers, The State University of New Jersey, U.S. Department of Agriculture, and County Boards of Chosen Freeholders. Rutgers Cooperative Extension, a unit
of the Rutgers New Jersey Agricultural Experiment Station, is an equal opportunity program provider and employer.
Rutgers Cooperative Extension -18-
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