Corn Earworm
A strong cold front bringing the coldest air of the late summer/early autumn season is expected to pass through the corn-growing region late this weekend and early next week. Ahead of this front, however, a rather stout yet short duration south to southwest wind is expected. Corn earworm moth migration may occur in this southerly wind regime especially from late Saturday into Sunday from northern Kansas as far north as eastern South Dakota and Minnesota and as far east as the southern Great Lakes and eastern corn-growing region in Michigan and western Ohio during this time. Little to no additional risk is predicted before or after this time given unfavorable wind flow. Growers with crops still at susceptible stages to damage, especially fresh market and processing growers, are encouraged to continue monitoring traps and scouting fields until harvest occurs or the crop moves past critical growth stages.