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Agronomy Tip: Understand Corn Rootworm As corn rootworm continues to plague farms in the Midwest, it is best to understand how this pest behaves. “Because corn rootworms are below ground, often times we don’t know that they’re there until we have some above-ground symptoms,” Paul Parcher, Technical Agronomist for Channel Seed explains. One example is lodged corn after strong windstorms, which may occur due to the loss of root tissue caused by corn rootworm larval feeding. Corn rootworm populations can fluctuate rapidly from year to year, Parcher says. Corn rootworm eggs are well ad...

Agronomy Tip: Document Corn Rootworm Damage Paul Parcher, Technical Agronomist for Channel Seed recommends documenting where you scout and find corn rootworm presence during the growing season. A platform like Climate Fieldview™ offers an easy and convenient way to drop pins in fields to record the locations where corn root balls were collected, or the presence of corn rootworm was detected during the growing season. “This is important because a lot of times in the fall, there aren’t corn rootworm beetles around and root balls are already deteriorating, so it’s hard to determine the...