You are here
It’s been a long time since a new product has been available to control soybean aphids and other devastating piercing-and sucking insects. The EPA has approved an insecticide ingredient from BASF called Inscalis. The trade name that soybean growers will see is Sefina.
Duane Rathmann is a technical services representative with BASF. He says aphids have become resistant to older pesticide chemistries, so this is a new weapon that they won’t see coming.
"Inscalis insecticide works very quickly by stopping feeding of the soybean aphid within hours after application. But the other feature of this new product is that it doesn’t control other types of insects," says Rathmann. "People are very familiar if they have soybean and soybean aphids with that orange lady beetle. That’s a natural predator, that’s very important. That’s Mother Nature’s way of controlling that pest, and this insecticide won’t touch that insect, so it leaves it there to let Mother Nature do its job as well."
Even though it’s a new mode of action, Rathmann warns Inscalis has to be used properly to prevent aphids from becoming resistant to it.
"We’re still going to recommend waiting till they get to that 250 threshold, they don’t want to use an insecticide unnecessarily at a lower number of aphids because then you can develop resistance by using it when you don’t need it," he says. " We always want to rotate modes of action as well. But this is just another tool in the tool box and one that was really needed because the old tools were kind of failing."
The Inscalis active ingredient will power insecticidal products under different names for a broad range of crops including leafy vegetables, stone fruit, and cotton.