What might be the fallout from PPO-resistant pigweeds? - Delta Farm Press
Now that PPO-resistant pigweeds have been confirmed in the Mid-South how might things shake out in the future. “The PPO chemistry has been the backbone of weed control for cotton,” says Jason Norsworthy, University of Arkansas weed scientist. Take that out and it’s going to make weed control in cotton more challenging, especially in Roundup Ready cotton. But the PPO resistance, again, is going to impact Roundup Ready cotton. “We’re also seeing a decent amount of Roundup Ready Flex cotton planted this year. “In a PPO-resistant pigweed situation, between cotton and soybeans I think cotton is in the better position. In Mississippi – where PPO-resistant pigweeds are yet to be confirmed -- Jason Bond is extremely suspicious the weed’s evolution has occurred. “We’ve seen plenty of failures recently,” says the Mississippi State University Extension weed specialist. “This is a terrible year to see a new resistance case to pop up. With some of these fields, you have to believe it can’t be anything but resistance. After the PPO news broke, I believe it was Ford Baldwin (veteran weed scientist and Delta Farm Press columnist) who tweeted ‘Is anyone really surprised. Source: deltafarmpress.com
