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EPA registration expands uses for AMVAC’s Impact herbicide 

Changes add control of multiple problem weeds.

AMVAC, a subsidiary of American Vanguard, announces Environmental Protection Agency (EPA) label changes that expand the use of Impact herbicide. 

The EPA has approved users of Impact to apply up to 2 fluid ounces per acre in either single or sequential applications in corn. This expanded use adds control of Texas panicum, field sandbur, and shattercane in tank mixes with atrazine. It also has increased the maximum size for control of yellow foxtail, fall panicum, woolly cupgrass, and broadleaf signalgrass.

This registration will allow use of Impact following application of Impact Core and Sinate herbicide – both new for the 2021 growing season – as well as 

“Impact Herbicide has been a mainstay of weed control programs for some time,” says Nathaniel Quinn, AMVAC marketing manager for corn, soybeans, and sugar beets. “We’re pleased to be able to extend Impact’s effectiveness to even more weeds and application situations.”

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