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IPM Stuff Newsletters: Issue
9 - August 22, 2008 Sign up for the SWROC Crop Production list serve by e-mailing Molly Werner IPM Stuff Classics Corn
Planting Depth - 3/5/99 SWROC Pages: Home Page Other Cropping Newsletters: Minnesota Crop eNews - Regional Newsletters Minnesota Fruit and Vegetable IPM News The Bulletin - Other States IPM Newsletters
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Integrated Pest Management Newsletters and Information IPM Stuff Print this newsletter using Acrobat Reader Table of Contents: If you receive these newsletters as forwards and would like to be on the mailing list subscribe send a request to Molly Werner. You get what you pay for. This is a free newsletter.
An
Unknown Caterpillar Keep your eyes open for this insect described below. I would appreciate hearing from you if you find any.
A consultant observed these insects attacking Yield GuardT,
triple stack corn in Cottonwood County and correctly decided that these
were not a typical cutworm. Damage was confined to rows of corn along
a narrow brome grass fencerow. The infestation did not warrant treatment.
Affected plants had wilted tops (top left). Cream colored larvae with
purplish stripes (bottom left) were found at the base of the plants and
tunneled into the growing point and above (top right). These are not stalk
borer. General appearance and damage resemble hop vine borer (Hydraecia
immanis) but based on coloration, I suspect these are something different.
Lepidoptera larval taxonomy is painful, beyond my meager skills, and many
species are not described as larvae. I am attempting to rear some specimens
to adulthood for a better ID. I am also testing a couple larvae on Herculex®
Xtra tissue.
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