According to a recent report by Texas A&M AgriLife Extension, 2016 has brought challenges with increased bollworm damage in Bt cotton and increased corn earworm damage in Bt corn.
“Field observations suggest that we do have resistance,” says Pat Porter, Extension Entomologist. “…and we will have more resistance.”
Laboratory tests on the progeny of the insects collected from the field will give researchers more information. For now, diversity in technology used is encouraged.