
Research Evaluates Horseweed Response To Paraquat And Diquat In New York Vineyards And…
New York horseweed populations following an application of paraquat at a rate of 0.73 kg a.i./ha at 1 d after treatment. (Top left) Paraquat-resistant population collected from a New York vineyard (NY-Gr); (top right) paraquat-susceptible population collected from a New York roadside site (NY-Ro); (bottom left) paraquat-resistant population collected from a New York apple orchard (NY-Ap); and (bottom right) paraquat-susceptible population collected from a New York soybean field (NY-So).
https://ashs.org/news/news.asp?id=705604