Search

This week we begin Week 7 of moth trapping in Iowa. Significant captures of black cutworm (BCW) have occurred in several counties during weeks 3-6 of trapping (bold and * in Table 1). Significant captures occur when 8 or more BCW moths are caught in a wing-style pheromone trap over 2 nights. Another type of trap used to monitor BCW activity is a bucket trap. This type of trap tends to capture more moths, but determinations about significant flights are not made in our table because a reliable threshold does not exist yet.