Invading insects are devastating many of Iowa’s cornfields this season. Floyd County Extension crop specialist George Cummins says black cutworms are in full feast after a significant flight of cutworm moths this spring.Cummins says heavy rains forced some farmers to replant their corn, causing small vulnerable plants to be affected by the black cutworms.Cummins says some of the damage done in the fields has caused farmers to scramble. He says some were just discovered and it’s too late to replant, and the farmers are left with few good options.For more information about black cutworms, contact your county extension office.