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Dicamba volatility still a concern for Illinois weed scientist

University of Illinois weed scientist Dr. Aaron Hager says dicamba volatility remains a big concern.

Hager has been outspoken about the volatility of the new dicamba products, which he says is injuring non-dicamba tolerant soybeans and other plants.  He says the problem is just as serious this year as it was last year in Illinois.

“When we see symptoms of soybean fields that are a hundred acres in size—120 acres in size—and you see the symptomology of dicamba exposure that is so uniform across the entire field, from side-to-side and headland-to-headland, you don’t get that through physical drift—and you do not get that through contaminated equipment,” Hager says.

The only way that can happen is through a volatility event, Hager says.

“So the idea that there’s not volatility issues with dicamba, I think that’s a big misnomer—and there’s absolutely no evidence that would support that.”

Hager says he doesn’t know if continued volatility concerns will have any impact on the EPA’s re-registration of dicamba.  That decision is expected sometime in August.

Brownfield spoke with Hager this week at a Palmer amaranth field day near Carleton, Nebraska, where he was the keynote speaker.

AUDIO: Dr. Aaron Hager

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