Recently the Environmental Protection Agency held a scientific advisory panel and one of the questions was how to define resistance. Miloud Araba, technical product lead for Syngenta says that is a debate that will continue. “What we do know though, is that in some of these corn on corn areas you do have really high pressure,” he says. “If the pressure is high enough and growers have been seeing increased damage, over 1 on a scale of 0 to 3, that’s what we call unexpected damage.”
But whether that is resistance or not, he says, is something that is still being examined. “What I think is key is that actions need to be taken,” he says. “When a grower has unexpected damage higher than 1, more than they typically see, they need to go back and evaluate the situation and see what the issue is. Most have been corn and corn for many years and they need to be able to put together a program together that will diminish the populations.”
One of which, Araba says, could be rotating to a non-host plant like soybeans.
If farmers currently have issues, the best thing to do it manage it now. In addition to preventing the damage from getting out of control, he says it also helps preserve the technology.
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