On-farm large plot comparison of Bt and non-Bt corn hybrids for Helicoverpa zea (Lepidoptera: Noctuidae) feeding, yield, and economic return.

Helicoverpa zea (Bodie) is a widespread damaging pest in the US that has evolved varying levels of resistance to Cry toxins in corn and cotton. To delay resistance evolution to this pest and others targeted by Bt corn, growers in the southern United…

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