Alligare’s Imazapyr 4 SL offers broad spectrum control of 185 annual, biennial, and perennial weeds and brush. The pre- and post-emergent, non-selective herbicide is ideal for a variety of use sites.


Performance Highlights

  • Controls most grasses, broadleaf weeds, vines, brambles, and hardwood brush for forestry site preparation
  • Excellent choice for the release of conifers from hardwood competition
  • Outstanding control of emerged and floating vegetation in aquatic environments
  • Long-lasting, residual control when included in bare-ground applications
  • May be applied as a broadcast, targeted handgun, low volume, cut stump, or basal application

States registered: AL, AK, AZ, AR, CA, CO, CT, DE, FL, GA, HI, ID, IL, IN, IA, KS, KY, LA, ME, MD, MA, MI, MN, MS, MO, MT, NE, NV, NH, NJ, NM, NY, NC, ND, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VT, VA, WA, WV, WI, WY

Mixers, loaders, applicators and other handlers must wear:

  • Long-sleeved shirt and long socks
  • Shoes plus socks
  • Chemical-resistant gloves for all mixers and loaders, plus applicators using handheld equipment

  • Alligator weed
  • Arrowhead
  • Cattails
  • Water hyacinth
  • Giant reed
  • Water lettuce
  • Brazilian pepper
  • Chinese tallow
  • Cherry
  • Vine maple
  • Saltcedar
  • Taro
  • Cogongrass
  • Giant ragweed
  • Sericea lespedeza
  • Johnsongrass
  • Purple loosestrife
  • Sweetgum
  • Phragmites
  • Puncturevine
  • Russian olive
  • Madrone
  • Wild carrot
  • Willow

See product label for complete list.

  • forestry sites
  • pastures and rangeland
  • railroad and utility rights-of-way
  • non-irrigation ditch banks
  • wildlife management areas
  • aquatic sites
  • wildlife openings
  • fencerows and storage areas
  • industrial and utility plant sites
  • CRP areas

See product label for complete list.