It’s been 20 years since bt corn became available for farmers. A Purdue researcher says there have been some changes over the years.
Christian Krupke from Purdue University tells Brownfield he’s taking a retrospective look at bt corn, what traits were introduced and when, where resistance has developed, and why. He says for resistance, location matters. “How well they work depends where you live. In many areas of the corn belt, we don’t have reports of resistance.