Tests show promise for new fungicide

Frances Gould, Schultz, Bruce  |  1/24/2017 8:38:24 PM

A new fungicide will be available for treating sheath blight and blast. “We’ve been testing it for about five years,” said LSU AgCenter plant pathologist Don Groth.

Groth said his tests have shown Amistar Top from Syngenta works well against fungicide-resistant sheath blight, which means it will be an additional tool with Sercadis and Elegia fungicides. In addition, it has good activity against blast.

“We can get back to treating blast and sheath blight in a single application,” Groth said.

Instead of propiconazole for sheath blight, the product has difenoconazole, he said.

The application for a label from the U.S. Environmental Protection Agency was filed in last spring, but it’s uncertain if approval will be issued before the next growing season. “We might get it in time for next season, but we’re not sure,” Groth said.

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