Armyworm monitoring is starting. So far, traps have been set up in 11 locations. As in past years, Valley-wide updates will be sent via e-mail and the number of moths per location will be updated in the AgPestMonitor website.

The information from the trapping network can help growers and PCAs avoid armyworm surprises. Worm numbers will peak one to two weeks after the moth numbers in the traps peak. The armyworm e-mail update will highlight when we are at peak moth flight so that monitoring can be intensified during those two weeks.