Gain access to personalized product screening, the best pricing, rewards, and more!
Create An Account, Or Sign In.
NUFARM
WEEDestroy AM-40 Amine Salt Selective Weed Killer
WEEDestroy AM-40 Amine Salt Selective Weed Killer is a strong, dependable post-emergent herbicide built to control broadleaf weeds and brush without hurting most crops, pastures, rangelands, and non-crop areas.
As low as
$97.95
Only %1 left
SKU
WEEDestroy AM-40 Amine Salt Selective Weed Killer Product Page
Min : 97.95 - Max : 97.95
+
Price as of
04/16/26
04/16/26
Price Transparency
See how our pricing compares to other online retailers for this item.
WEEDestroy AM-40 Amine Salt Selective Weed Killer, manufactured by Nufarm, is a low-volatile, selective post-emergent herbicide concentrate that delivers powerful, economical weed and brush control for lawns, crops, and aquatic settings.
This emulsifiable concentrate herbicide stands out with its low-volatility, water-based amine formulation that significantly reduces vapor drift and odor, making it safer to apply near sensitive plants and more user-friendly for operators. Its broad-spectrum efficacy controls hundreds of tough broadleaf weeds including dandelion, thistle, ragweed, and woody brush while offering excellent compatibility with liquid fertilizers and tank-mix partners for tailored weed management.
WEEDestroy AM-40 Amine Salt Selective Weed Killer is a reliable, post-emergent herbicide that delivers powerful and affordable broadleaf weed and brush control for homeowners, farmers, ranchers, and other property owners. With its proven 2,4-D amine formulation, massive list of controlled weeds, low volatility, turf safety, and broad label use sites, it consistently delivers the kind of results that cheaper herbicides simply cannot match.
Tools Needed
A handheld pump sprayer, backpack sprayer, spray rig, or aircraft can be used.
How to Use
- Step 1: Determine how much WEEDestroy AM-40 Amine Salt Selective Weed Killer 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 multiplying 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 spot treatments in non-crop areas, use 0.5 teaspoons of WEEDestroy AM-40 Amine Salt Selective Weed Killer in 0.6 pints of water per 1,000 sq. ft. Refer to the product label for specific application rates and restrictions.
- Step 2: Fill the sprayer with half the amount of water, add the proper amount of product, and pour in the remaining half of the water. Close the tank lid and shake until the product is well-mixed.
- Step 3: Spray the top and bottom of weed leaves until wet, but not to the point of runoff. If a second application is needed, wait until 30 days have passed from previous application.
Where to Use
WEEDestroy AM-40 Amine Salt Selective Weed Killer is for use in corn, soybeans (preplant), small grains, pastures, rangelands, and other listed crops and in non-crop areas such as lawns, ornamental turf, drainage ditchbanks, fence rows, and right-of-way.
When to Use
Apply when weeds are present on days when rainfall is not expected within 48 hours of application.
Safety Information
WEEDestroy AM-40 Amine Salt Selective Weed Killer is safe for people and pets when applied according to the product label instructions. Always wear the proper personal protective equipment (PPE) when mixing and applying this product.
Do not allow people or pets to enter the treated area until 48 hours have passed after application.
Special Considerations
For best results, do not use on bentgrass unless grass injury can be tolerated.
| Restricted Use | No |
|---|---|
| Shipping Restrictions | AK, AL, AR, AZ, CA, CO, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY |
| Availability | Online |
| Signal Word | DANGER |
| Keith's Pro Tip | "Be sure to reguarly mow your property, rake up fallen plant debris, and be sure to keep up with regular yard care to help prevent weeds." |
| Time to Kill | WEEDestroy AM-40 Amine Salt Selective Weed Killer will control weeds within 21-30 days. |
| Chemical Type | Herbicide |
| Formulation | Emulsifiable Concentrate (EC) |
| Application Methods | Broadcast Spray, Spot Treatment |
| Product Drawbacks | Do not apply near susceptible plants since very small quantities of the 2,4-D will cause severe injury during the growing or dormant periods. |
| Active Ingredient | 2,4-Dichlorophenoxyacetic Acid 46.80% |
| Application Equipment | Backpack Sprayer, Pump Sprayer, Spray Rig |
| Mix Rate | For spot treatments in non-crop areas, use 0.5 teaspoons of WEEDestroy AM-40 Amine Salt Selective Weed Killer in 0.6 pints of water per 1,000 sq. ft. |
| Use Sites | Outdoors |
| Yield | 2.5 gallons of WEEDestroy AM-40 Amine Salt Selective Weed Killer covers up to 10 acres. |
| EPA Registration No. | 228-145 |
| Shelf Life | WEEDestroy AM-40 Amine Salt Selective Weed Killer will last for 3 years when stored in a dry, clean area. |
| Comparable Products | 2,4-D Amine Selective Post-Emergent Herbicide, Shredder 2,4-D LV6 Herbicide, Martin's 2,4-D Amine Selective Weed Killer, Hi-Yield 2,4-D Selective Weed Killer |
| Children or pets? | Yes |
| Property Characteristics | None |
| Availability | Online |
| Restricted Use | No |
| Brand | NUFARM |
| Keith's Pro Tips | "Be sure to reguarly mow your property, rake up fallen plant debris, and be sure to keep up with regular yard care to help prevent weeds." |
| Product Drawbacks | Do not apply near susceptible plants since very small quantities of the 2,4-D will cause severe injury during the growing or dormant periods. |
| Target Pests | Alder, Alfalfa, Alligatorweed, American Lotus, Annual Morningglory, Annual Sowthistle, Arrowhead, Artichoke, Ash, Aspen, Aster, Austrian Fieldcress, Beggarticks, Big Sagebrush, Bindweed (European), Bindweed (Field), Bindweed (Hedge), Birch, Bitter Winter Cress, Bittercress, Bitterweed, Blackeyedsusan, Blessed Thistle, Blue Beech, Blue Lettuce, Boxelder, Broomweed, Buckbrush, Buckhorn Plantain, Bull Thistle, Bullthistle, Bur Ragweed, Burdock, Buttercup, Canada Thistle, Carolina Geranium, Carpetweed, Cascara Buckthorn, Catnip, Cattail, Ceanothus, Cherry, Cherokee Rose, Chicory, Chickweed, Cinquefoil, Cockle, Cocklebur, Coffeebean, Coffeeweed, Common Burdock, Common Cinquefoil, Common Cocklebur, Common Evening Primrose, Common Lambsquarters, Common Purslane, Common Ragweed, Common Sowthistle, Creeping Jenny, Croton, Curly Indigo, Cutleaf Eveningprimrose, Daisy Fleabane, Dandelion, Devil's Claw, Dock, Dogbane, Dogwood, Duckweed, Elderberry, Elm, Falsedandelion, Field Pennycress, Flixweed, Florida Pusley, Frenchweed, Giant Ragweed, Goatsbeard, Goldenrod, Goosefoot, Ground Ivy, Gumweed, Hairy Galinsoga, Hairy Vetch, Hardwoods, Hawthorn, Hazel, Healall, Hemp, Henbit, Hoary Cress, Honeysuckle, Horsetail, Horseweed, Indian Mallow, Indigo, Ironweed, Japanese Honeysuckle, Jerusalem Artichoke, Jewelweed, Jimsonweed, Johnsongrass (Seedling), Klamath Weed, Knotweed, Lambsquarters, Little Mallow, Loco, Lupine, Madrone, Mallow, Manyflowered Aster, Manzanita, Maple, Marijuana, Marshelder, Marestail, Mexicanweed, Morningglory, Morningglory (Common), Morningglory (Ivy), Morningglory (Woolly), Mousetail, Musk Thistle, Mustard, Mustards (except Blue Mustard), Nettle, Nutgrass, Oak, Orange Hawkweed, Parrotfeather, Parsnip, Pecan, Pennycress, Pennsylvania Smartweed, Pennywort, Peppergrass, Pepperweed, Pigweed, Pigweeds, Plantain, Plantains, Poison Hemlock, Poison Ivy, Pokeweed, Poorjoe, Poplar, Povertyweed, Prickly Lettuce, Primrose, Puncturevine, Purslane, Rabbitbrush, Ragweed, Ragweed (Common), Ragweed (Giant), Rape, Red Clover, Red Maple, Rough Cinquefoil, Rough Fleabane, Rush, Russian Thistle, Sagebrush, Salsify, Salsify (Common), Salsify (Western), Sand Sagebrush, Sand Shinnery Oak, Serviceberry, Shepherdspurse, Sicklepod, Smallflower Bittercress, Smallflower Buttercup, Smartweed, Smartweeds (Annual), Sneezeweed, Southern Wild Rose, Sowthistle, Sowthistle (Annual), Sowthistle (Spiny), Spanishneedles, Spatterdock, Speedwell, St. Johnswort, Stinging Nettle, Stinkweed, Sumac, Sunflower, Sweetclover, Sweetgum, Tanoak, Tanweed, Tansy Ragwort, Tarweed, Thistle, Toadflax, Tules, Tumbleweed, Velvetleaf, Vervain, Vervains, Vetch, Vetches, Virginia Copperleaf, Virginia Creeper, Water Hyacinth, Water Lily, Water Milfoil, Water Plantain, Water Primrose, Watershield, Weeds, Wild Carrot, Wild Garlic, Wild Grape, Wild Lettuce, Wild Mustard, Wild Onion, Wild Parsnip, Wild Radish, Wild Strawberry, Wild Sweet Potato, Willow, Witchweed, Wormwood, and Yellow Rocket. |
| Application Equipment | Backpack Sprayer, Pump Sprayer, Spray Rig |
| Application Methods | Broadcast Spray, Spot Treatment |
| Active Ingredient | 2,4-Dichlorophenoxyacetic Acid 46.80% |
| Product Type | Herbicide |
| Formulation | Emulsifiable Concentrate (EC) |
| Application Rate | For spot treatments in non-crop areas, use 0.5 teaspoons of WEEDestroy AM-40 Amine Salt Selective Weed Killer in 0.6 pints of water per 1,000 sq. ft. |
| Shelf Life | WEEDestroy AM-40 Amine Salt Selective Weed Killer will last for 3 years when stored in a dry, clean area. |
| Yield | 2.5 gallons of WEEDestroy AM-40 Amine Salt Selective Weed Killer covers up to 10 acres. |
| Use Sites | Outdoors |
| Time to Kill | WEEDestroy AM-40 Amine Salt Selective Weed Killer will control weeds within 21-30 days. |
| Comparable Products | 2,4-D Amine Selective Post-Emergent Herbicide, Shredder 2,4-D LV6 Herbicide, Martin's 2,4-D Amine Selective Weed Killer, Hi-Yield 2,4-D Selective Weed Killer |
| Use Caution With | Bentgrass, St Augustine |
| Incompatible Home Siding | Brick, Hardie Plank, Stone Veneer, Stucco, Wood, Vinyl |
| EPA Registration # | 228-145 |
*Price does not include freight. We guarantee our rate plus shipping will be less than anyone else's price.