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Emergency herbicide exemption granted for sandbur controlOklahoma The Environmental Protection Agency has granted a specific exemption to allow Oklahoma producers to use the chemical Prowl H2O to control sandbur infestations in Bermuda grass from now until June 30. The agency granted the exemption at the request of the Oklahoma Department of Agriculture, Food and Forestry. This is the second consecutive year this exemption has been made. 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. More information on the use of the product has been posted on the ODAFF website at www.oda.state.ok.us/forms/cps/prowlbermudagrass.pdf. The agency has also requested that EPA grant a similar exemption for the herbicide Pastora for sandbur control, as well. This herbicide has not been exempted at this time. The Oklahoma Department of Agriculture, Food and Forestry also say producers should consider treating pastures for invasive weeds such as musk thistle at this time. 24D type products are effective during this time of year.
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