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resistant pigweed

UGA researchers confirm PPO-resistant Palmer pigweed

georgia PPO herbicide trial

• By Stanley Culpepper and Taylor Randell • Research over the past three seasons has confirmed a Georgia population of Palmer amaranth to be resistant to topical applications of PPO herbicides including Reflex, Cobra and Blazer (Figure 1). For cotton and peanut farmers, the question on everyone’s mind is if the residual activity of Valor and Reflex will still control ... Read More »

EPA Announces Changes To Dicamba Registration

young cotton field

On Oct. 31, the U.S. Environmental Protection Agency announced it is extending the registration of dicamba for two years for “over-the-top” use to control weeds in fields for cotton and soybean plants genetically engineered to resist dicamba. This action was input from and extensive collaboration between EPA, state regulators, farmers, academic researchers, pesticide manufacturers and other stakeholders. “EPA understands that ... Read More »