Grass Herbicide Ornamec 170 already contains the required surfactant vs. Original Ornamec which will not work unless a surfactant is added. Ornamec 170 can also be used to control common and hybrid bermudagrass in tall fescue and zoysia lawns Ornamec 170 is the product to use if you have ornamental beds overrun with grass weeds. You can spray right over the top of most landscape plants and only the grass is affected. Recommendations For post-emergent control of grass weeds in and around groundcovers, shrubs and trees in landscape beds, tree wells, along fence lines. Ornamec 170 Grass Herbicide is a fluazifop-P-butyl formulation designed especially for the maintenance of landscape beds. Of more than 500 species and varieties of shrubs, wildflowers, trees, flowers and groundcovers listed on the label, over 400 may be treated with Ornamec 170 applied as "over-the-top" applications without risk of plant injury. Over 200 additional species are listed in three groups according to the risk of the plant injury, with directed application recommended. Ornamec 170 emphasizes user convenience by pre-blending the surfactant. The 32 fluid ounce size is just right for mixing in most back-pack sprayers, covering up to 5,000 square feet of ornamental beds, tree wells, fencelines, or other areas where control of unwanted grasses is desired. Ornamec 170 works best if applied when grasses are young and actively growing. Grass growth stops within 48 hours and death occurs within 1 to 3 weeks. Ornamec 170 may be used in and around newly-emerging ornamentals and transplants, as well as in established plantings. Broadleaf weeds and sedges are unaffected. Tremendous labor-saver eliminates hand-weeding as well as the more tedious application, care and plant injury risks involved when using non-selective herbicides. Requires no additional surfactant. Selectively controls emerged annual grasses panicums, goosegrass, crabgrass, foxtails and sandbur. Also controls stubborn perennial species like Bermudagrass, quackgrass, torpedograss and Johnsongrass (both seedling and rhizome types). Rain-fast one hour after application. Treated grass ceases growth usually within 48 hours and dies within one to three weeks.