Best Management Practices:
For use of DuPont™ Verimark™ insect control on young trees
For use on trees under five feet tall
Citrus
Help your trees realize their ultimate potential. DuPont™ Verimark™
insect control is powered by Cyazypyr™, a groundbreaking new
product from DuPont that gives you healthier and better-looking
young trees by providing superior protection from insect pests.
When you put Verimark™ to work on your operation, you can
expect a level of protection unlike anything you’ve seen before.
• Excellent fit for rotational programs during rainy season
Get your groves off to a healthy start.
• Always read and follow all label instructions and precautions
This new soil-applied technology helps young trees get off to a
strong start by providing a unique cross-spectrum control of two
of the most costly pests — Asian citrus psyllid and citrus leafminer
— to young citrus trees. Verimark™ offers a new mode of action
for sucking and chewing pests, making it a good fit in your soil
application rotation program for young citrus trees. The protection
from Verimark™ visibly improves plant establishment for healthier,
more resilient trees, which can help young trees produce faster for
a longer and more productive grove.
(May to Oct.), or areas subject to high moisture.
• Contact your local DuPont representative before beginning a
Group 28 soil-applied program.
• Avoid making two successive applications of Verimark™ to
young trees.
for use.
These Best Management Practices focus on the delivery of
Verimark™ through soil drench and microsprinkler chemigation
systems and key considerations for optimizing results for use of
Verimark™ on young citrus trees.
Application methods for soil drench or microsprinkler
chemigation
• Soil drench applications should be made with a minimum of
½ to 1 pint of water per tree distributed evenly around the tree
root zone.
Asian citrus psyllid (Diaphorina citri) adults and nymphs
• Microsprinkler chemigation systems should run for at least
5 to 10 minutes before injecting Verimark™ to achieve optimal
uptake.
• Best results may be obtained with drench application.
• Keep treatment area weed- and grass-free to maximize delivery
to the target.
• Use rate per acre is 15–30 ounces. Maximum rate per year is
30 ounces per acre.
• Maximum of two applications per year at the 15 ounces per acre
rate, and one application for rates up to 30 ounces per acre.
• Best results may be obtained when first application is
made following a soil-applied program with neonicotinoids
(Group 4A).
• Apply Verimark™ 4–7 days before residual of neonic application
is exhausted for continuous protection, and to allow full
translocation into the aerial portions of the trees.
Citrus leafminer (Phyllocnistis citrella)
Suggested DuPont™ Verimark™ Rate Per Tree on Various-Sized Young Citrus Trees
Fluid ounces per tree (2 applications per year)
Tree spacing (ft)
New reset
(2–3' height)
Number of trees per acre
Young tree
(3–4' height)
Young tree
(4–5' height)
Verimark™ at 15 fluid ounces per acre
25 x 25
70
0.214
25 x 20
88
0.170
25 x 15
116
0.129
25 x 12.5
140
0.107
22 x 10
198
0.076
20 x 10
218
0.069
15 x 10
290
0.052
15 x 10
363
0.041
18 x 5
484
Not labeled for use at the 15 fl oz/A rate
0.031
Verimark™ at 20 fluid ounces per acre
25 x 25
70
0.286
0.286
0.286
25 x 20
88
0.227
0.227
0.227
25 x 15
116
0.172
0.172
0.172
25 x 12.5
140
0.143
0.143
0.143
22 x 10
198
0.101
0.101
0.101
20 x 10
218
0.092
0.092
0.092
15 x 10
290
0.069
0.069
0.069
15 x 10
363
0.055
0.055
0.055
18 x 5
484
0.041
0.041
0.041
Verimark at 30 fluid ounces per acre
™
25 x 25
70
0.429
0.429
0.429
25 x 20
88
0.341
0.341
0.341
25 x 15
116
0.259
0.259
0.259
25 x 12.5
140
0.214
0.214
0.214
22 x 10
198
0.152
0.152
0.152
20 x 10
218
0.138
0.138
0.138
15 x 10
290
0.103
0.103
0.103
15 x 10
363
0.083
0.083
0.083
18 x 5
484
0.062
0.062
0.062
Not labeled for use on young trees greater than 5 feet tall. Recommendation for trees greater than 5 feet tall is to switch to
DuPont™ Exirel™ insect control to incorporate a single mode of action Group 28 rotation into a foliar program.
Optimal residual and new flush protection from Asian citrus psyllid and citrus leafminer. Rate to be used in rotations with neonicotinoids for greening management.
Adequate protection from Asian citrus psyllid and citrus leafminer damage.
Not recommended for adequate protection.
Newly planted young citrus trees.
Young citrus tree 4 feet tall on left, and 5 feet tall on right (approximate heights).
DuPont Verimark and Exirel may not be registered for sale or use in all states. Contact your local DuPont representative for details and availability in your state.
The EPA registered labels contain the statements, “These products are highly toxic to bees exposed to direct treatment on blooming crops or weeds. Do not apply these products or
allow to drift to blooming crops or weeds if bees are foraging in the treatment area.”
This reference guide is not intended as a substitute for the product label for the product(s) referenced herein. Product labels for the above product(s) contain important precautions,
directions for use, and product warranty and liability limitations, which must be read before using the product(s). Applicators must be in possession of the product label(s) at the time
of application. Always read and follow all label directions and precautions for use when using any pesticide alone or in tank-mix combinations.
The DuPont Oval Logo, DuPont™, Cyazypyr™, Exirel™ and Verimark™ are trademarks or registered trademarks of DuPont or its affiliates.
Copyright © 2014 E.I. du Pont de Nemours and Company. All Rights Reserved. 4/14 Reorder No.: K-27732
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