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acreage area ATTACK blades boring caterpillar breaking brood broom corn brought brown carried caterpillar largely caused Clean farming commerce common ear worm complete destruction complete disposal considerable distances Corn Belt corn planting corn stalks corn-grow Courtesy crop residues Crop rotation CYCLE damage darker Department of Agriculture distant points double-brooded ear corn early east eggs England Europe European corn borer fall federal control feed female fertile field flight floods fodder foothold found hatching heavy help control inch Indiana Infested plant materials injury July June legumes light-colored long Michigan mistaken moths emerge movement of infested normal number occur Ohio pest pith plowing reaches Missouri replace resembles River roasting ears seed severe infestations shucked single-brooded form soil southeast spends the winter spread stalk and ear stalk borer stalk of corn stalks and stubble stems strains summer tassel tunnels in corn U. S. Department utilization weeds winds York west