Active Ingredient: Penoxsulam


LockUp® specialty herbicide provides lawn care operators, golf course superintendents, sports turf managers and sod producers the power of liquid weed control in granular formulations. Compared with other herbicide options, LockUp demonstrates superior efficacy at extremely low use rates, which helps decrease the overall pesticide load in the environment. Granular formulations of LockUp on fertilizer are available from The Andersons, Harrell’s, Howard’s Fertilizer, Howard Johnson’s Enterprises, Lebanon Seaboard, Regal Chemical Company, SiteOne Landscape Supply and Turf Care Supply. They will be available from other distributors in the future.


  • Low use rates (0.02 to 0.06 lb. a.i/A)
  • Can be applied to warm- and cool-season turf
  • Superior efficacy when compared with other granular herbicide options
  • "Caution" signal word
  • For optimal results, apply to moist foliage
  • No restrictions on the time of year when applications can be made
  • Accepted for review and registration under the U.S. Environmental Protection Agency's Reduced Risk Pesticide Initiative

For more information, please select from this list of downloadable items:

Technical Info Sheet (328KB PDF)

LockUp logo        White Clover
Weeds Controlled

  • White clover
  • Dollarweed
  • Dandelion
  • Chickweed
  • Lespedeza
  • Ground Ivy
  • Broadleaf plantain
  • Florida betony
  • Kyllinga
  • Annual sedges
  • See the labels of products containing LockUp for complete listing of weeds controlled.