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Got pecan questions? Contact any member of the Tri-County Pecan Demonstration team:
Lonoke County - Kyle Sanders
Prairie County - Jacob Holloway
White County - Sherri Sanders
White County - Jan Yingling
or reach out to your local county extension agent.
Contact Sherri Sanders at email@example.com to sign up for email updates!
by Amy Tallent – CEA – Staff Chair
The main insect we need to scout for, currently, during the growing season is the
Pecan Nut Casebearer.
Pecan Nut Casebearer start laying eggs on the tip of the nutlets in May or early June.
When hatched the larva borrows into the nutlets damaging as much as the entire cluster
of pecans. They will then feed for 4 to 5 weeks, then pupate inside and emerge as
a moth in 9-14 days.
There are 2 ways to approach staying in front of the larva population:
Look for eggs on tip of nutlets
Eggs are white when laid then will gradually turn red 3-5 days before hatching
Scout 10 clusters randomly across your orchard. If two are infested, then application
will be needed.
Mark the cluster and monitor the egg color change
Make sure you spray based on eggs/larva present not moth numbers. Refer to the pecan
section of the MP144 for material and amount to use/A for the application. https://www.uaex.uada.edu/publications/pdf/mp144/MP144_17_FruitandNuts.pdf
Pecan Nut Casebearer Egg Color Change
(Image credit: Oklahoma Cooperative Extension Service)
Pecan Nut Casebearer Moth (Image credit: Jerry A. Payne, USDA Agricultural Research Service, Bugwood.org)
Frass from pecan nut casebearer (Image credit: Oklahoma Cooperative Extension Service)