April 2022 - 5

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ADVERTISEMENT | © 2022 Corteva
a division of Great American Publishing
FGN | APRIL 2022 | 5
W
hile the risk
of insecticide
resistance is a
growing concern in orchards,
informed management
decisions can help you reduce
that risk and protect your fruit
crop.
Often, the more effective a
class of chemistry is, the more
often it is used to control
insect pests. Unfortunately,
frequent use of a singular
mode of action can increase
the potential for resistance
development.
The recipe for long-term
pest control success includes
Integrated Pest Management
(IPM) practices, including
monitoring pest activity,
field scouting, and spraying
only when pest counts reach
economic or defoliation
thresholds. It is also crucial to
rotate modes of action and
ensure that you are employing
the most effective solution for
your pest challenge.
Rotating three different
insecticides does not
necessarily equate to rotating
three modes of action. Pay
attention to IRAC group
numbers, read the product
label, and find that number to
be sure you are rotating to a
different mode of action.
" It is relatively easy to think
you are rotating to a different
mode of action, when you are
instead rotating to another
product within the same
chemistry group, " says Corey
Fisher, sales representative
with Nutrien Ag Solutions in
Hendersonville, North Carolina.
How to Mitigate Resistance
Defend Your Orchards With Delegate®
WG Insecticide
Corey Fisher
Fisher also stresses
the importance of timing
insecticide applications for
the control of codling moth.
" Degree-day data can help
pinpoint moth flights and
better identify the most
effective spray timing, " he
says.
" We generally recommend
two sprays for codling moth,
one early and one in mid- to
late-season, " Fisher says. " In
this window, get a rotation
of Delegate and Voliam Flexi
insecticide started. "
An IRAC Group 5 insecticide,
Delegate®
Jemelva®
WG insecticide with
active (spinetoram)
offers a distinct mode of
action found nowhere else in
the market.
Delegate promises quick,
lasting control of troublesome
pests, such as codling moth,
armyworms, leafrollers, thrips
and leafminers, with minimal
impact on beneficial insects.
While entomologists
generally recommended using
individual selective herbicides
when primarily targeting one
pest, there are times when a
tank mix is called for.
If tank mixes are in the
plan, try to ensure that each
product in the mix breaks
down at approximately equal
rates of time. Tank mixes also
work best when pests are
susceptible to each mode of
action included and no cross
resistance is present.
" Don't wait until field failures
become obvious because, at
that point, you may already
have resistant species in that
field, " Fisher says.
To learn how the distinct
mode of action in Delegate
can help control fruit pests
while also minimizing
resistance development, visit
DelegateWG.Corteva.US.
™ ®
Trademarks of Corteva Agriscience and its affiliated companies. Jemvelva™ is a registered active ingredient.
Always read and follow label directions. CA38-359-020 (04/22) BR CAAG1INTE054
http://www.FruitGrowersNews.com http://DelegateWG.Corteva.US
April 2022

Table of Contents for the Digital Edition of April 2022
