Are glyphosate-tolerant crops contributing to resistance?
"I try to rotate away from glyphosate use, but I can't find conventional varieties that yield as well."
"I'm already paying for glyphosate-tolerant technology in the varieties I'm planting, so how am I supposed to rotate away from it?"
As stacked traits become more abundant in the marketplace, concerns about how that factors into resistance development have been raised. Just because a trait is available, doesn't necessarily mean that it has to be used. The U.S. is dealing with a boom of glyphosate-resistant weeds is not because GT crop varieties are accessible, but because glyphosate has been used exclusively and continuously on millions of acres versus implementing diversity.
Because of the successful adoption of GT crops since their inception, seed varieties that have been developed with more desirable traits often also include GT traits. But, solutions are available to manage resistance while still taking advantage of this great technology. Develop a long-term resistance management program that includes diversifying crops, modes of action and cultural practices therefore alleviating pressure on resistant weeds. And, still achieving the high yield potential available. Using a pre-emergence, residual herbicides helps crops get a healthy start and an advantage over weeds. The most expensive herbicide is the one you don't use. If you're experiencing tolerance to glyphosate herbicides - rotate to another chemistry or mode of action.