Corn earworm migration risks are back in the forecast tonight and continue into the weekend as another weather system develops in the High Plains, and spreads very warm to hot and humid conditions back across much of the corn-growing region. Low risks are predicted tonight into tomorrow on increasing southerly winds across the Plains states, especially in Kansas and Nebraska. Low risks then shift east and also north, by tomorrow night into Friday, and are found from Kansas, Nebraska, and the Dakotas as far east as central Wisconsin southwestward along the Mississippi River and into Missouri. By Friday night into Saturday, this time period is expected to contain the most favorable conditions for corn earworm migration, and a Moderate risk has been hoisted for portions of Kansas, Nebraska, Missouri, Iowa, Minnesota, Wisconsin, and Illinois where south to southwest winds are expected to be most favorable. Both field corn and fresh market crops (sweet corn, other produce that serve as hosts) are now entering into critical growth stages with an increasing percent of field corn now tasseling in or near the risk area, and recent flights in the past few weeks may also result in some new egg-laying and eventually larvae appearing. For these reasons, and a favorable weather pattern, Moderate risks are in place for the aforementioned area on Friday night into Saturday with Low risks extending into the Great Lakes and eastern corn-growing region during this time, also, but additionally into Saturday night into Sunday, as well, and mainly across the far eastern areas on Sunday night into Monday. Growers are encouraged to check traps and scout fields given multiple risks (moths already present and the potential for new moth arrivals).