An insecticide used to combat soybean aphids continues to
generate environmental concerns.

Joshua Stamper with the Minnesota Department of Ag says over the past five years, growers have turned to chlorpyrifos because of resistance to synthetic pyrethroids.

“And as we’ve seen the increased use of chlorpyrifos to address soybean aphids, we’ve also seen increases in surface water features that are exceeding the water quality standards for chlorpyrifos.”

He tells Brownfield the chlorpyrifos label under the trade name Lorsban includes significant setbacks.

…