Most locations in New York State have passed the 25% western bean cutworm flight completion threshold for egg mass scouting threshold according to the NEWA WBC model. Now is the time to evaluate your corn and dry beans if you haven’t already done so.
Western bean cutworm presence has been confirmed in 24 of 27 monitored counties across New York State as of 27 July 2020. NEWA WBC modeling suggests the 25% threshold for egg mass scouting has been exceeded in western NY and central NY, the Finger Lakes, Hudson Valley and Long Island.
15 August 2019. Pheromone trap catches confirm WBC presence in all regions of New York State. NEWA WBC modeling indicates that all areas of the state have exceeded the threshold of 25% flight completion for egg mass scouting. WBC flights are expected to end within the next 7-10 days in all areas except Northern NY where estimates range from 85% to 92% flight completion.
Northern NY also experienced heavy WBC catches this week. Check this week’s NYSIPM Weekly Field Crops Pest Report for additional information.
An important reminder that WBC estimated flight emergence is only applicable when presence has been confirmed. Visit the NYSIPM Sweet Corn Pheromone Trap Report blog or NYSIPM Weekly Field Crops Pest Report, updated weekly, to find detailed WBC trap catch information for your area, along with European corn borer, corn earworm, and fall armyworm.