What is in this article?:
- Georgia cotton growers achieving good control of resistant pigweed, but at a price
- Using large rye
• Three or four things will occur over the next few years that’ll help farmers in their continuing battle to control resistant pigweed.
UNIVERSITY OF GEORGIA weed scientist Stanley Culpepper describes advances in the battle to control glyphosate-resistant Palmer amaranth pigweed during the recent Sunbelt Ag Expo Field Day held in Moultrie, Ga.
Georgia cotton producers are spending approximately $150 million per year to control glyphosate-resistant Palmer amaranth pigweed.
The good news this year is they may be getting their money’s worth.
“Our growers are getting good control from the $150 million they’re spending, and we haven’t gotten that in many years,” says Stanley Culpepper, University of Georgia Extension weed scientist.
“We’re having a great year as far as management, but we’re having a challenging year as far as sustainability.”
Culpepper was one the featured presenters during this year’s Sunbelt Agricultural Expo Field Day held in Moultrie, Ga. About 400 farmers, agribusiness professionals and others made 42 stops during the half-day tour to hear researchers and company representatives discuss cutting-edge technology along with long-standing production and variety work.
The field day is an opportunity to preview a portion of what can be seen during the 35th Sunbelt Ag Expo, set for Oct. 16-18.
Three or four things will occur over the next few years that’ll help farmers in their continuing battle to control resistant pigweed, says Culpepper.
“If you’re a cotton producer, you’re well aware of a herbicide called Warrant — you’re using it postemergence in your cotton crop. But when we come to talk with you this winter, we’ll tell you to use it pre-emergence. In fact, I think it’s the safest pre-emergence material we can use in cotton.
“We won’t use Warrant by itself. We’ll still need to tank-mix it with another chemistry to help protect it. But it will reduce our input costs a little bit, and it also will reduce our herbicide injury slightly,” he says.
Researchers also are examining the role of a rye cover crop in the battle against herbicide-resistant pigweed.