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European Corn Borer Low (08/12/21)


European corn borer (ECB) moth flight is ending. ECB Z-race moths (univoltine) were detected at 3 of the 13 trap sites and ECB E-race (bivoltine) at 1 of the 13 trap sites last week (Table 1). The ECB-Z and ECB-E-race moths peaked the week of July 2-8. The ECB-Z moths were 90% of the total trap catch last week, while ECB-E moths were only 10%. Corn crop stages were R2 to R3.


European Corn Borer Trapping Maps and phereomone trap catches


Veronica Calles-Torrez

Post-doctoral Scientist


T.J. Prochaska

Extension Crop Protection Specialist

NDSU North Central Research Extension Center


Janet J. Knodel

Extension Entomologist