Productive pastures do not happen by chance. They are built from the ground up, starting with a thoughtful approach to soil nutrition. When soil health is managed with intention, the result is higher-quality forage, improved livestock performance, and a more resilient grazing system that pays dividends year after year. Read more
IMAZAPYR 4 SL
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.
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Building Better Pastures through Optimal Soil Nutrition -
Broadleaf Weed Control: A Proven Tool for Rangeland ManagementGRASS INTO GAINS WITH ALLIGARE RANGE & PASTURE Broadleaf weed control on rangelands has been a cornerstone of effective land management for decades. Since the introduction of 2,4-D in the 1940s, land managers have had access to a powerful tool that selectively targets broadleaf plants while leaving grasses intact. This revolutionary herbicide made it possible to reshape and enhance pastureland without disturbing the valuable grass species that serve as the foundation of forage systems. Over the years, many new active ingredients have been introduced to the market and this practice has become standard among livestock producers, conservationists, and landowners seeking to improve the productivity, safety, and ecological health of their rangelands. The benefits are broad and well-documented: increased forage production, delayed or prevented brush encroachment, reduced presence of poisonous plants, and support for land restoration efforts.Read more -
Optimizing Grazing Efficiency through Strategic Prickly Pear ManagementOpuntia, more commonly known as prickly pear, is a well-recognized symbol of the Southwest, but for land managers and livestock producers, it often represents a persistent challenge. While several species are native to the region, invasive species originating from Central America and the West Indies have also become established. Whether growing horizontally across the ground or standing vertically at heights exceeding six feet, prickly pear can significantly disrupt grazing operations. Its dense structure and sharp spines limit access to desirable forage, reduce pasture productivity, and deter cattle from grazing effectively.Read more -
Fall Herbicide Applications: The Key to Reducing Spring Weed PressureSuccessful weed and brush control doesn't start in the spring. It starts now, with proactive fall herbicide applications.Read more
