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BASF
Arsenal Herbicide
Arsenal Herbicide is a low-volume non-selective herbicide that controls a broad-spectrum of broadleaf weeds, grassy weeds, and brush in non-crop areas, nonagricultural lands, and aquatic sites.
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Arsenal Herbicide Product Page
Min : 197 - Max : 197
Price as of
09/07/25
09/07/25
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Arsenal Herbicide, manufactured by BASF, is a well-patented non-selective herbicide that provides control over a wide range of troublesome weeds and brush within nonagricultural lands, pastures, rangelands, and aquatic sites.
Offers season-long or multi-year residual activity against invasive and persistent vegetation such as fescue, poison ivy, trumpet creeper, and more. This systemic herbicide effectively disrupts plant growth by inhibiting essential enzyme production, ensuring long-lasting vegetation control with minimal soil disturbance.
Arsenal Herbicide is an industry-leading solution for controlling unwanted vegetation in forestry, industrial, and aquatic environments. With its long-lasting residual control, broad-spectrum effectiveness, and versatile application methods, it remains a go-to herbicide for professionals.
Tools Needed
It can be applied with a helicopter, ground sprayer, backpack sprayer, or handheld pump sprayer.
How to Use
- Step 1: Determine how much Arsenal Herbicide to use by measuring the square footage of the treatment area. Find the square footage by measuring the treatment area's length and width in feet, then multiply them together (length X width = square footage). For acreage, take the square footage and divide it by one acre (square footage / 43,560 sq. ft. = acres). For control of undesirable vegetation in grass pasture and rangeland, Arsenal may be applied as a spot treatment at a rate of 2 to 48 fluid ounces of product per 100 gallons of water per treated acre. Refer to the product label for specific application rates and restrictions.
- Step 2: Fill the spray tank with half the amount of product, then pour in the proper amount of product. Add in the remaining half of the water and agitate until well-mixed.
- Step 3: Spray the top and bottom of weeds until wet, but not to the point of runoff. Do not irrigate for at least 24 hours following application to allow for dissipation.
Where to Use
Arsenal Herbicide can be used within specified aquatic sites, forestry sites, pasture/rangeland, and nonagricultural lands; and for establishment and maintenance of wildlife openings, release of unimproved Bermudagrass and Bahiagrass, bareground weed control, and for use under certain paved surfaces.
Do not use on lawns, walks, driveways, tennis courts, or similar areas.
When to Use
Apply when weeds are actively growing on days when rainfall is not expected to occur for at least an hour after application.
Safety Information
Arsenal Herbicide is safe to use around children and pets when applied according to the product label instructions. Always wear the proper personal protective equipment (PPE) when mixing and applying this product.
Keep people and pets out of the treated area until 48 hours have passed after application.
Special Considerations
Do not side trim desirable vegetation with this product unless severe injury and plant death can be tolerated. Prevent drift of spray to desirable plants.
| Availability | Online |
| Restricted Use | No |
| Shipping Restrictions | 2.5 Gallon: AK, CA, CT, HI, IN, MI, NY, OR, RI, SC, VT, WA |
| Brand | BASF |
| Keith's Pro Tips | "To better prevent unwanted aquatic weeds, plant native vegetation along the shoreline to filter nutrients and prevent erosion." |
| Product Drawbacks | Untreated desirable plants can be affected by root uptake of Arsenal® herbicide from treated soil. Injury or loss of desirable plants may result. |
| Target Pests | Lobolly pine, Longleaf pine, Shortleaf pine, Virginia pine, Slash pine, Coastal redwood, Douglas fir, Western hemlock, California red fir, California white fir, Jack pine, Lodgepole pine, Pitch pine, Ponderosa pine, Sugar pine, White pine, Black spruce, Red spruce, White spruce, Bedstraw, Bishopweed, Buttercup, Carolina geranium, Fescue, Foxtail, Little barley, Seedling Johnsongrass, White clover, Wild carrot, Yellow woodsorrel, Floating heart, Frogbit, Spatterdock, Water hyacinth, Water lettuce, Alligatorweed, Arrowhead, Lemon bacopa, Parrotfeather, Pennywort, Pickerelweed, Wild taro, Water chestnut, Water lily, Water primrose, Aquatic nightshade, Soda apple, Japanese bamboo, Vitex beach, Brazilian pepper, Christmasberry, Cattail, Chinese tallow tree, Cogongrass, Prairie cordgrass, Cutgrass, Elephant grass, Napier grass, Flowering rush, Giant reed, Wild cane, Golden bamboo, Junglerice, Knapweed, Japanese knotweed, Melaleuca paperbark tree, Nutgrass, Nutsedge, Phragmites, Common reed, Poison hemlock, Purple loosestrife, Reed canarygrass, Swamp rose, Russian olive, Saltcedar, Smartweed, Sumac, Swamp morningglory, Torpedo grass, White top, Hoary cress, Willow, Sandbur, Smooth brome, Vaseygrass, Wild oats, Witchgrass, Barnyardgrass, Beardgrass, Annual Bluegrass, Bulrush, Cheat, Cogongrass, Crabgrass, Crowfootgrass, Fall panicum, Goosegrass, Itchgrass, Lovegrass, Maidencane, Panicum, Prairie threeawn, Field sandbur, Signalgrass, Wild barley, Woolly cupgrass, Bahiagrass, Bermudagrass, Big bluestem, Dallisgrass, Feathertop, Guineagrass, Saltgrass, Sand dropseed, Sprangletop, Timothy, Wirestem muhly, Broadleaf signalgrass, Canada bluegrass, Downy brome, Fescue, Foxtail, Italian ryegrass, Johnsongrass, Kentucky bluegrass, Orchardgrass, Paragrass, Quackgrass, Burdock, Carolina geranium, Carpetweed, Clover, Common chickweed, Common ragweed, Dandelion, Dogfennel, Filaree, Fleabane, Hoary vervain, Indian mustard, Kochia, Lambsquarters, Lespedeza, Miners lettuce, Mullein, Nettleleaf goosefoot, Oxeye daisy, Pepperweed, Pigweed, Russian thistle, Sorrel, Sunflower, Sweet clover, Tansymustard, Wild carrot, Wild lettuce, Wild parsnip, Wild turnip, Broom snakeweed, Bull thistle, Burclover, Chickweed, Cocklebur, Cudweed, Arrowweed, London rocket, Dock, Fiddleneck, Henbit, Florida pusley, Stinging nettle, Velvetleaf, Yellow starthistle, Arrowwood, Giant ragweed, Gray rabbitbrush, Little mallow, Milkweed, Primrose, Silverleaf nightshade, Sowthistle, Texas thistle, Field bindweed, Hedge bindweed, Wild buckwheat, Greenbriar, Honeysuckle, Morningglory, Poison ivy, Redvine, Wild rose, Trumpetcreeper, Virginia creeper, Wild grape, Brazilian peppertree, Chinese tallow tree, Russian olive, Sumac, Willow, Alder, American beech, Ash, Aspen, Autum olive, Bald cypress, Bigleaf maple, Birch, Black gum, Black oak, Boxelder, Ceanothis, Cherry, Chinaberry, Chinquapin, Cottonwood, Cypress, Dogwood, Elm, Eucalyptus, Hawthorn, Hickory, Huckleberry, Lyonia, Madrone, Maple, Melaleuca, Mulberry, Oak, Persimmon, Poison oak, Poplar, Privet, Red alder, Red maple, Saltcedar, Sassafras, Sourwood, Sweetgum, Sycamore, Tanoak, Titi, Tree of heaven, Vaccinium, Water willow, and Yellow poplar. |
| Active Ingredient | Imazapyr 27.8% |
| Product Type | Herbicide |
| Formulation | Emulsifiable Concentrate (EC) |
| Application Rate | For control of undesirable vegetation in grass pasture and rangeland, Arsenal may be applied as a spot treatment at a rate of 2 to 48 fluid ounces of product per 100 gallons of water per treated acre. |
| Shelf Life | Arsenal Herbicide will last for 3 years when stored in a dry, clean area. |
| Yield | 2.5 gallons of Arsenal Herbicide coverage will vary. |
| Use Sites | Outdoors |
| Time to Kill | Chlorosis and tissue necrosis may not be apparent in some plant species until 2 or more weeks after application. Complete kill of plants may not occur for several weeks. |
| Comparable Products | Ecomazapyr 2 SL Herbicide, Rotary 2SL Forestry Herbicide |
| Incompatible Home Siding | Brick, Hardie Plank, Stone Veneer, Stucco, Wood, Vinyl |
| EPA Registration # | 241-346 |
| Restricted Use | No |
|---|---|
| Shipping Restrictions | AK, CA, CT, HI, IN, MI, NY, OR, RI, SC, VT, WA |
| Availability | Online |
| Signal Word | CAUTION |
| Keith's Pro Tip | "To better prevent unwanted aquatic weeds, plant native vegetation along the shoreline to filter nutrients and prevent erosion." |
| Time to Kill | Chlorosis and tissue necrosis may not be apparent in some plant species until 2 or more weeks after application. Complete kill of plants may not occur for several weeks. |
| Chemical Type | Herbicide |
| Formulation | Emulsifiable Concentrate (EC) |
| Product Drawbacks | Untreated desirable plants can be affected by root uptake of Arsenal® herbicide from treated soil. Injury or loss of desirable plants may result. |
| Active Ingredient | Imazapyr 27.8% |
| Mix Rate | For control of undesirable vegetation in grass pasture and rangeland, Arsenal may be applied as a spot treatment at a rate of 2 to 48 fluid ounces of product per 100 gallons of water per treated acre. |
| Use Sites | Outdoors |
| Yield | 2.5 gallons of Arsenal Herbicide coverage will vary. |
| EPA Registration No. | 241-346 |
| Shelf Life | Arsenal Herbicide will last for 3 years when stored in a dry, clean area. |
| Comparable Products | Ecomazapyr 2 SL Herbicide, Rotary 2SL Forestry Herbicide |
| Children or pets? | No |
| Property Characteristics | Grazing Animals |
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