Revolver Herbicide Receives California Registration

Revolver herbicide, a postemergent herbicide for selectively removing cool-season grasses from warm-season grasses, recently received registration for use in California, announced Bayer Environmental Science.

Containing the sulfonylurea active ingredient, foramsulfuron, Revolver controls unwanted cool-season grasses, such as Poa annua, Poa trivialis, perennial ryegrass, bentgrass, bluegrass, and tall fescue. It is registered for use on tolerant warm-season turfgrasses, including numerous cultivars of bermudagrass and zoysiagrass. Revolver also controls goosegrass and henbit, and provides suppression of centipedegrass.

“Revolver will primarily be used on overseeded dormant bermudagrass as a transition aid,” said Ben Cicora, Bayer business manager, herbicides/PGRs. “The product will also be used to remove volunteer ryegrass, Poa annua, Poa trivialis and goosegrass from actively growing bermudagrass and zoysiagrass without harming the desirable grasses. Results generally are apparent within one to two weeks after application.”

Labeled rates for Revolver range from 0.1 to 0.6 ounces per 1,000 square feet. Higher rates and air temperatures result in quicker removal of unwanted grasses. Revolver provides control of emerged weeds only and has limited soil residual. Sequential applications or residual tank mixtures may be required to control weeds emerging after application.

“Revolver has a short half-life compared to other registered sulfonylureas,” Cicora noted. “It has a short carryover and limited effects on non-target weeds.”

For more information, contact your local Bayer sales representative or visit www.Bayerprocentral.com.

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