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Herbicide approved for sandbur control
Oklahoma Oklahoma agriculture officials no longer have to request an exemption to allow farmers and ranchers to use the herbicide Prowl H2O (Pendimethalin) to control sandbur infestations. The Environmental Protection Agency has allowed the chemical's label to list sandbur control as a permitted use. The Oklahoma Department of Agriculture, Food, and Forestry has asked for and received exemptions to use the product for the past two years. Prowl H2O is a selective herbicide for controlling sandbur as it germinates, and producers have a very narrow window of opportunity to treat their Bermuda pastures and meadows for this weed. The chemical is only effective when applied to dormant grasses. Also, producers are not allowed to graze livestock on treated acres for 45 days after application, and they must wait at least 60 days to harvest grasses for hay.
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