Cost-effective, long-lasting (2-8 months) pre-emergent control of annual grasses and selected broadleaf weeds in ornamentals (container and field grown), commercial landscaping, and warm season turf. Save active ingredient as Surflan A.S. - cheaper price!!! Safe to use on turfgrass such as zoysia, bermuda, centipede, and St. Augustine Labeled safe for use as pre-emergent control in over 400 varieties of ornamentals and grasses Excellent tank mix partner with Oxyfluorfen or Oxadiazon, simazine or Diuron for even broader spectrum weed control. Can be used on over 400 species of ornamentals and warm season grasses. Pre-emergent weed control that may be used in combination with glyphosate (Roundup) for weeds that have already emerged. Preventative weeds controlled (but not limited to) include: Annual bluegrass (Poa annua) Crabgrass Foxtail Goosegrass Groundsel Henbit Knotweed Spurge (prostrate)