Lawrence from Texas writes
Certainty Herbicide is only labeled for suppresion of dallisgrass in a Bermuda lawn per the product label. Please also be mindful that per that label the following application includes the use of MSMA, MSMA can cause injury to common and hybrid bermudagrass as well. It is recommended to test the following tank-mix recommendation on a small area prior to wide-scale use to determine if this application is suitable for your bermudagrass management objectives. This is directly from the Certainty product label: For suppresion of dallisgrass in bermudagrass turf, apply this product, when dallisgrass is actively growing, at a rate of 1.25 ounces per acre in a tank mixture with 2 pounds of MSMA per acre and 0.25 percent of volume nonionic surfactant (1 quart per 100 gallons of spray solution). Reapply this same tank mixture 2 to 4 weeks after initial application.
Answer last updated on: 09/20/2016
