В Небраске зафиксирован пик численности моли западной фасолевой огневки, угрожающей урожаю

Western bean cutworm trapping in the Panhandle and southwestern Nebraska By the end of the week on Aug. 28, trap data is beginning to indicate the end of moth flights. Overall, the populations in 2026 have been high. In dry beans, scout now across western Nebraska and consider treatment if pod feeding exceeds 0.5-1%; the ideal treatment window is 10-21 days after flight peak. In corn, if the larvae have moved down the silk in ears, contact insecticides will not be effective. For corn, a match between moth flight and the late whorl-to-early tassel stage can result in high levels of infestation. For beans, if the cumulative moth catch at peak moth flight (50 percent emergence) per green bucket trap is < 1200, between 1200 and 1700, or> 1700, the risk of significant damage is low, moderate, or high, respectively. Note that it is a risk assessment; actual bean damage and economic risk from larval feeding require scouting. More information on scouting, treatment recommendations, and insecticide options: https://cropwatch.unl.edu/2020/scouting-and-treatment-recommendations-western-bean-cutworm/. Cumulative moth catch numbers will be updated weekly. Green bucket traps are monitored by the University of Nebraska-Lincoln Panhandle Research Extension and Education Center Entomology Lab (Scotts Bluff and Sioux counties), John Thomas (Nebraska Extension educator; Box Butte County), Samantha Daniel (Nebraska Extension educator; Chase, Dundy, Perkins xounties), and Vinicius Zuppa (Nebraska Extension educator; Cheyenne County). Weekly trap data are compiled by UNL PREEC Entomology Lab.