Glyphosate for Torpedograss and Bermudagrass Control1
- E. O. Beard
Ten experiments were conducted for control of torpedograss (Panicurn repens L.) and nine experiments were conducted for control of bermudagrass (Cynodon × magenissii Hurcombe) over a 5-year period. A single application of glyphosate (N-(phosphonomethyl) glycine) at the rate of 2.24 kg/ha controlled these two perennial weeds well. Rototilling within 4 days following the application reduced the effectiveness of the herbicide in controlling torpedograss. No reduction in phytotoxicity occurred when the interval was 7 or more days. Residual phytotoxicity of glyphosate at 4.48 kg/ha dissipated to permit normal germination and growth of perennial ryegrass (Lolium perenne L.) on a well-irrigated sandy soil when the interval between application and seeding was 10 or more days. Results from these experiments demonstrate the effectiveness of glyphosate for control of certain hard-to-kill rhizomatous weeds prior to establishing turf.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
Copyright © 1980. . Copyright © 1980 by the American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, and International Turfgrass Society, 5585 Guilford Rd., Madison, WI 53711 USA