BioAdvanced 32 oz. Ready-to-Spray Bermudagrass Control for Lawns. This selective herbicide effectively eliminates Bermudagrass weeds without harming cool-season turfs like Fescue, Kentucky Bluegrass, and Perennial Ryegrass. Simply attach it to your hose and spray for easy application. It also kills crabgrass and other grassy weeds, providing a maximum coverage area of 5000 sq. ft. Visible results can be seen in 96 hours. The active ingredient is Fenoxaprop-p-ethyl.