When Pesticides Don't Play Nice
Emily Unglesbee DTN Staff Reporter
Thu Apr 9, 2015 02:11 PM CDT

ST. LOUIS (DTN) -- It's time to brush up on some old chemistry lessons before heading into the fields this spring. The potential for crop injury from herbicide-insecticide interactions is back on the farming curriculum, scientists told DTN.

"Everything old is new again," explained University of Tennessee weed scientist Larry Steckel. "Insecticide-herbicide interactions were a problem in the '80s and they're cropping up again now." As growers turn to a wider range of herbicides to control resistant weeds and return to soil insecticides to control Bt-resistant rootworms, this risk of crop injury is on the rise, he said.

At issue ...

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