Weapon® Herbicide – Imazapyr 4 lb (2.5 gallons) ( Arsenal, Imazapyr 4 SL)

Weapon® Herbicide is a professional-strength, broad-spectrum imazapyr herbicide designed for long-lasting control of unwanted grasses, broadleaf weeds, brush, vines, and other undesirable vegetation.

Containing 53.1% isopropylamine salt of imazapyr, equivalent to 4 pounds of imazapyr acid per gallon, Weapon provides powerful systemic control with residual activity. The herbicide is absorbed through leaves and stems and moves throughout the plant, including into underground storage organs, helping control established perennial vegetation and prevent regrowth.

Key Benefits

• 4 lb. imazapyr acid equivalent per gallon
• Controls many annual and perennial grasses, broadleaf weeds, brush, and vines
• Systemic activity provides control throughout the plant
• Provides residual control of certain undesirable vegetation
• Rainfast in 1 hour
• Labeled for both aquatic and terrestrial vegetation management
• Group 2 herbicide
• Professional-grade alternative for vegetation management programs

Labeled Use Sites

Weapon is labeled for use in a wide variety of areas, including:

• Forestry sites
• Aquatic sites
• Ponds, lakes, wetlands, and riparian areas as permitted by the label
• Pasture and rangeland
• Wildlife management areas and wildlife openings
• Railroad, highway, pipeline, and utility rights-of-way
• Fence rows and non-irrigation ditch banks
• Industrial sites and tank farms
• Airports
• Recreation areas, campgrounds, trailheads, and trails
• Bare-ground vegetation control
• Release of unimproved Bermudagrass and Bahiagrass

How Weapon Works

Weapon is readily absorbed through emergent leaves and stems and translocated throughout the plant. Treated vegetation stops growing shortly after application, with visible symptoms developing over time. In perennial plants, Weapon moves into underground or submerged storage structures to provide more complete control and help prevent regrowth.

Active Ingredient: Imazapyr, isopropylamine salt – 53.1%
Acid Equivalent: 4 lb. imazapyr acid per gallon
Herbicide Group: Group 2
Formulation: Liquid concentrate
Rainfast: 1 hour
EPA Reg. No.: 83529-139
Signal Word: CAUTION

Always read and follow the complete product label before use. Application rates, restrictions, approved use sites, PPE requirements, and other directions vary by application. It is a violation of Federal law to use this product in a manner inconsistent with its labeling.