Cotton growers looking for solutions against herbicide resistance
“We have a committed and creative group of growers, and if there are more cost effective ways to control Palmer amaranth, I’m confident we will find them,” Culpepper said.
A Cautionary Tale
The impact of glyphosate resistance on cotton crops represents a cautionary tale for anyone relying on a single herbicide mode of action for weed control, scientists say. If you reach the resistance “tipping point” in a crop, it can be very costly to turn back the tide.
According to WSSA member Bryan Young, Ph.D., a professor at Southern Illinois University and expert in herbicide resistance, more than 200 weed species are now resistant to one or more herbicides.
“It isn’t herbicides that create herbicide-resistant weeds,” Young says. “Instead, the culprit is how we use herbicides in an overall weed management strategy. To preserve the effectiveness of herbicides, it is imperative that we become better stewards of their use. Minor changes made today can avoid costly problems in the future.”
Best management recommendations and free educational materials about how to combat herbicide resistance are available on WSSA’s website: wssa.net/weed/resistance.
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