Southwestern Corn Borer Trap Counts: June 25, 2016
By Jeff Gore, Research and Extension Entomologist, Angus Catchot, Extension Entomologist, Don Cook, Entomologist and Erick Larson, State Extension Specialist - Grain Crops
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Southwestern corn borer numbers increased significantly in some areas this week. The highest numbers were 377 caught in Leflore County and 450 caught in Coahoma County. The current threshold in the 2016 Insect Control Guide suggests spraying when 50 moths are caught before tassel and when 100 moths are captured and in tasseling corn. Sprays should be made 7 days after these trap numbers are recorded. The highly variable trap numbers suggest that some non-Bt corn fields may need to be sprayed next week, but many remain safe.
By Jeff Gore, Research and Extension Entomologist, Angus Catchot, Extension Entomologist, Don Cook, Entomologist and Erick Larson, State Extension Specialist - Grain Crops
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