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Corn leafhopper, found in Missouri for the first time in 2024, carries corn stunt disease, which can cause up to 100% yield loss in corn crops. Photo by Lucas Bonuma Severo, University of Missouri. -
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This 2024 photo of ears of corn from fields in southwestern Missouri shows the difference between normal ears of corn and those affected by corn stunt disease. Corn stunt disease results deformed grains and lower yields. Photo courtesy of MU Extension agronomist Tim Schnakenberg.
COLUMBIA, Mo. – University of Missouri Extension state field crops and forage entomologist Ivair Valmorbida will update producers on pests affecting corn and soybean crops at the annual MU Crop & Pest Management Field Day, July 8 in Columbia.
Valmorbida will explain stinkbug biology, defoliation thresholds and management options. His research shows that stink bugs are widespread in Missouri soybean. He will talk about when and why to scout fields for stink bugs, which are most likely to appear in soybean mid-July to harvest.
He also will talk about corn leafhopper, which first appeared in Missouri in 2024. Corn leafhoppers carry corn stunt disease, which can cause 100% yield loss.
The annual event expands this year to offer a full day of learning, thanks to a collaboration with the Missouri Soybean Association, says Kevin Bradley, MU Extension weed scientist and longtime organizer of the pest management field day.
The traditional Crop & Pest Management Field Day begins at 8:30 a.m. at MU’s Bradford Research Farm in Columbia. After lunch, participants can drive or take a shuttle down Rangeline Road to the nearby 285-acre Farm for Soybean Innovation (formerly Bay Farm) for Ag Innovation Day to learn about the latest soybean research and technology.
Register for both events at the Missouri Soybeans website.
Photos
Corn leafhopper, found in Missouri for the first time in 2024, carries corn stunt disease, which can cause up to 100% yield loss in corn crops. Photo by Lucas Bonuma Severo, University of Missouri.
Corn stunt disease. This 2024 photo of corn from fields in southwestern Missouri shows the difference between normal ears of corn and those affected by corn stunt disease. Corn stunt disease results in deformed grains and lower yields. Photo courtesy of MU Extension agronomist Tim Schnakenberg.
