Corn Earworm
Low corn earworm migration risks re-enter the forecast by Thursday night into Friday, and likely through the weekend and potentially beyond, as a rather stagnant weather pattern is expected to take shape over the corn-growing region. High pressure in the far eastern corn-growing region or just east in the eastern United States is expected to remain in place for several days while low pressure develops and churns in the High Plains region. In between these two pressure centers, southerly winds are likely and temperatures are expected to warm once again. The persistent pattern for what could be several days may lead to some corn earworm moth flights especially from source regions west of the Mississippi River in the mid-south and Texas, with processing and fresh market fields most at risk given crop stage at this time of year. Low risks are in the forecast from late Thursday into Saturday mainly west of Lake Michigan, and then after Saturday as far east as the I-69 corridor in southern lower Michigan, Indiana, and western Kentucky. Growers with crops at stages still susceptible to corn earworm damage should continue scouting and trapping efforts until harvest.

