Corn Earworm
Corn earworm migration risks are back in the forecast as early as Sunday this coming weekend as southerly winds increase initially ahead of what looks to be a weaker low pressure system organizing in the northern Plains states. Low risks are focused mainly in the Plains states late Saturday into Sunday, with the risk spreading east to near Lake Michigan and into the I-57 corridor in eastern Illinois by Monday. Despite what looks to be modest southerly winds, we are in the time of year that we typically see more corn earworm pressure especially in the central and northern corn-growing region as mid-south and southern states corn crops (and other host plants) are becoming less attractive to corn earworm moths, and they will fly north in response to more advanced growth further south to find better hosts not as advanced in growth further to the north. We have already seen some pretty intense moth flights into several portions of the corn-growing region in the past month, some potentially in just the last few nights, so growers need to continue to regularly scout fields and monitor traps.

