Anthony Hanson, Field Crops Extension Educator - Integrated Pest Management Each year in September and October, U of M research and extension scientists conduct a state-wide survey to determine the percentage of plants infested with European corn borer (ECB) in growers' fields. This year, we plan to sample approximately 125 fields primarily across the western half of the state, though we may include some eastern locations depending on availability. A handful of fields are randomly selected in each county to represent the primarily predominant Bt acres where ECB populations are usually low due to the protection conferred by Bt traits specific to ECB. However, because ECB populations are inherently low in fields with protection, non-Bt fields are also needed in the survey to get a more accurate snapshot of populations and potential risk. Scouts visually inspect stalks for feeding damage and larval presence, so no effort or specialized plots on the grower's part is needed for a