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Helicoverpa zea on corn

Helicoverpa zea on corn

Corn is an important host of bollworm (Helicoverpa zea, also known as corn earworm), but it rarely causes yield loss in timely planted corn. Thus, growers that plant non-Bt corn can help delay bollworm resistance to Bt without sacrificing yield. (Photo credit: Dominic Reisig, Ph.D.)

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