A strong cold front is predicted to push southeast through much of the corn-growing region by mid-week this week. Ahead of the front, however, south to southwest winds and at least scattered areas of precipitation may coincide to result in scattered corn earworm moth flights into at least portions of the corn-growing region, mainly to the west of Lake Michigan. Moderate corn earworm migration risks are in place tonight into tomorrow morning across portions of eastern Nebraska, western Iowa, southwest Minnesota, and eastern South Dakota with Low risks extending from Kansas and Missouri as far north as the I-94 corridor in eastern North Dakota and central Minnesota as well as east into central Wisconsin and northwest Illinois. The Moderate risk area shifts southeast as the front moves southeast tomorrow night into Wednesday morning, and includes far northern Missouri, the southeastern half of Iowa, far southeast Minnesota, central and southern Wisconsin, and northwest Illinois. Low risks extend east into southern lower Michigan and Indiana. The front is predicted to make rather quick movement to the east with northwest flow becoming dominant once again for the latter half of the week and into next weekend. As a result, no additional migration risks are in place after midday Wednesday. Growers located especially west of Lake Michigan are urged to monitor traps and field activity this week for signs of new moths and/or building populations in fields, and be prepared to take necessary action if new moth flights are observed in these fields.