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DREXEL
Atrazine 4L Herbicide
Atrazine 4L is a post-emergent and pre-emergent herbicide designed to control various annual broadleaf and grass weeds growing on croplands, home lawns, ornamental turf, and rights-of-way. It can be applied by aerial or ground application methods.
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Atrazine 4L Product Page
Min : 116.35 - Max : 116.35
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Price as of
04/10/26
04/10/26
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Atrazine 4L is a restricted use post-emergent and pre-emergent herbicide formulated by Drexel Chemical Company. It is used to safely control annual broadleaf and grass weeds in cornfields, sugarcane fields, and turfs. The active ingredient, Atrazine will kill weeds as seeds or kill emerged weeds through the root system. Atrazine 4L Herbicide will control for barnyard grass, chickweed, henbit, and more. Atrazine 4L Herbicide is a flexible product that can be mixed, measured, and applied in different ways to prevent unwanted vegetation from taking over crops and ornamental turfs. Atrazine 4L is a restricted use herbicide that can only be purchased and applied by certified applicators.
Tools Needed
To apply Atrazine a backpack sprayer, handheld pump sprayer, hose-end sprayer or professional skid sprayer is needed. When applying Atrazine 4L to residential lawns, a handheld pump sprayer or backpack sprayer is recommended.
How to Use
- Step 1: To figure out how much Atrazine 4L you need, you will need to determine the treatment area. To do this, multiply length x width to get the total square footage to be treated. Atrazine 4L's label recommends applying the product at a rate of 1.5 fl. ozs. per 1,000 square feet in a gallon of water or 4 pints per acre in 15 gallons of water. For example, if you have a 3,000 square foot area to be treated, you would need 4.5 ozs of Atrazine mixed with 3 gallons of water. If you need to treat 3 acres, you need 12 pints in a minimum of 45 gallons of water.
- Step 2: Start the mixing and agitation process and pour the correct amount of product into the spray tank. Fill the spray tank with water until it is about 90% full and then add emulsifiable oil, oil concentrate or tank-mix herbicide(s) after the product is thoroughly mixed. The type of crop and land areas being treated will determine the required amount of additives needed and will also determine if the treated area requires irrigation. Fill the rest of the tank with the remaining amount of water and agitate to ensure it is well-mixed.
- Step 3: Apply the mixture to designated areas, preferably in a fan nozzle spray setting for even coverage until all or most of the solution is used.
Where to Use
Atrazine 4L Herbicide can be applied to specific cropland areas where corn, ornamentals, sugarcane, and other crops grow. It can also be applied to turfs and commercial and home lawns
When to Use
The best times to apply Atrazine 4L Herbicide will be determined by the targeted weeds being controlled. This product should only be applied during the dormant season of the area being treated. Do not apply Atrazine 4L Herbicide to turf grasses if the area is infested with diseases or insects.
Safety Information
Atrazine 4L Herbicide is safe to use around children and pets when applied according to the product label and when the product has been allowed to completely dry. Always wear the proper personal protective equipment when applying Atrazine 4L Herbicide.
Special Considerations
Atrazine 4L Herbicide can only be purchased and applied by Certified Applicators. Before applying Atrazine 4L Herbicide, always read the product label to make sure the correct application rate and method are being used. Total pounds of Atrazine applied must not exceed 2.5 pounds per acre per year.
| Restricted Use | Yes |
|---|---|
| Shipping Restrictions | AK, DC, HI, IL, KA, MI |
| Availability | Online |
| Signal Word | CAUTION |
| Keith's Pro Tip | "Within 1 year, the only crops that can be planted in areas where Atrazine 4L Herbicide has been applied are sorghum and corn. Other crops can be planted after 1 year." |
| Target Pests Multi | Alexandergrass, Amaranth, Annual Bluegrass, Annual Broomweed, Annual Clover, Annual Ragweed, Annual Thistle, Artillery Weed, Barnyardgrass, Black Nightshade, Bur Clover, Buttonweed, Carelessweed, Carpet Burweed, Cheat, Cheatgrass, Chickweed, Cocklebur, Common Chickweed, Common Lambsquarters, Corn Speedwell, Crabgrass, Cransbill, Cudweed, Dichondra, Downy Brome, Fall Panicum, Field Pennycress, Fireweed, Flora's Paintbrush, Florida Betony, Foxtail, Giant Foxtail, Green Foxtail, Ground Cherry, Hairy Crabgrass, Henbit, Hop Clover, Horseweed/Marestail, Japanese Brome, Jimsonweed, Junglerice, Kentucky Bluegrass, Knotweed, Kochia, Lambsquarters, Large Crabgrass, Lespedeza, Little Barley, Moneywort, Mouseear Chickweed, Narrowleaf Vetch, Nightshade, Parsley Piert, Pigweed, Poa Annua, Poorjoe, Prickly Lettuce, Purslane, Quackgrass, Ragweed, Russian Thistle, Sandspur, Seeding Dock, Sicklepod, Smartweed, Smooth Brome, Smutgrass, Spanishneedles, Spiny Amaranth, Spurge, Spurweed, Sunflower, Swinecress, Velvetleaf, Volunteer Wheat, Watergrass, Wild Buckwheat, Wild Lettuce, Wild Oats, Wild Sunflower, Wiregrass, Witchgrass, Woodsorrel, Yellow Foxtail, Mustard |
| Time to Kill | Results of using Atrazine 4L Herbicide can be seen within 5 to 7 days. |
| Chemical Type | Herbicide |
| Formulation | Suspended Concentrate |
| Application Methods | Broadcast Spray, Crack & Crevice, Spot Treatment |
| Product Drawbacks | Atrazine 4L Herbicide is a restricted product and can only be purchased and used by Certified Applicators. We recommend uncertified DIY homeowners to use TopShot Weed Killer to treat residential lawns. |
| Active Ingredient | Atrazine 42.2%, related compounds- 0.8% |
| Application Equipment | Backpack Sprayer, Gloves, Hose End Sprayer, Pump Sprayer, Respirator Mask, Spray Rig |
| Mix Rate | Application rates can vary depending on the type of crop or land area being treated and the type of application method being used. Generally, you will put down 64 ounces per acre. It is recommended to use 20 to 60 gallons of water at a maximum pressure of 35 to 40 PSI. For home lawns, the typical rate is 1.5 ounces per 1,000 square feet. See label for full use and more specific application instructions. For more specific application rates please refer to the label. |
| Use Sites | Outdoors |
| Yield | The yield for Atrazine 4L Herbicide depends on the type grass or cropland the product will be applied to. For most applications, 0.6 to 0.75 ounces of Atrazine 4L will treat up to 500 square feet, and 64 ounces of Atrazine will treat up to 1 acre. |
| EPA Registration No. | 19713-11 |
| Shelf Life | Atrazine 4L Herbicide will last for up to 1 to 2 years when stored according to the product label. Store Atrazine 4L Herbicide in a cool, dry storage area. |
| Comparable Products | Simazine 4L |
| Children or pets? | No |
| Property Characteristics | None |
| Availability | Online |
| Restricted Use | Yes |
| Brand | DREXEL |
| Keith's Pro Tips | "Within 1 year, the only crops that can be planted in areas where Atrazine 4L Herbicide has been applied are sorghum and corn. Other crops can be planted after 1 year." |
| Product Drawbacks | Atrazine 4L Herbicide is a restricted product and can only be purchased and used by Certified Applicators. We recommend uncertified DIY homeowners to use TopShot Weed Killer to treat residential lawns. |
| Target Pests | Atrazine 4L Herbicide controls the following: Annual Bluegrass, Annual Morning Glory, Annual Morningglory, Barnyardgrass, Big Bluestem, Bluegrama, Buttonweed, Chickweed, Cocklebur, Common Chickweed, Crabgrass, Cransbil, Cudweed, Dichondra, Downy Brome, Eastern Gramagrass, Fall Panicum, Field Pennycress, Fireweed, Flora's Paintbrush, Florida Bentony, Foxtail, Giant Foxtail, Green Foxtail, Ground Cherry, Henbit, Indiangrass, Japanese Brome, Jimsonweed, Junglerice, Kentucky Bluegrass, Knotweed, Kochia, Lambsquarters, Large Crabgrass, Lespedeza, Little Bluestem, Moneywort, Mouse-ear Chickweed, Mustard, Narrowleaf Vetch, Night shade, Panicum Capillare, Parsleypiert, Pigweed, Poa Annua, Prickly Lettuce, Purslane, Quackgrass, Ragweed, Sand Lovegrass, Sandspur, Sicklepod, Side-Oats Grama, Smooth Brome, Smutgrass, Sprweed, Spurge, Spurweed, Sunflower, Swinecress, Switchgrass, Various Annual Clovers, Velvetleaf, Watergrass, Western Wheatgrass, Wild Oats, Wiregrass, Witchgrass, Woodsorrel, and Yellow Foxtail. |
| Application Equipment | Backpack Sprayer, Gloves, Hose End Sprayer, Pump Sprayer, Respirator Mask, Spray Rig |
| Application Methods | Broadcast Spray, Crack & Crevice, Spot Treatment |
| Active Ingredient | Atrazine 42.2%, related compounds- 0.8% |
| Product Type | Herbicide |
| Formulation | Suspended Concentrate |
| Application Rate | Application rates can vary depending on the type of crop or land area being treated and the type of application method being used. Generally, you will put down 64 ounces per acre. It is recommended to use 20 to 60 gallons of water at a maximum pressure of 35 to 40 PSI. For home lawns, the typical rate is 1.5 ounces per 1,000 square feet. See label for full use and more specific application instructions. For more specific application rates please refer to the label. |
| Shelf Life | Atrazine 4L Herbicide will last for up to 1 to 2 years when stored according to the product label. Store Atrazine 4L Herbicide in a cool, dry storage area. |
| Yield | The yield for Atrazine 4L Herbicide depends on the type grass or cropland the product will be applied to. For most applications, 0.6 to 0.75 ounces of Atrazine 4L will treat up to 500 square feet, and 64 ounces of Atrazine will treat up to 1 acre. |
| Use Sites | Outdoors |
| Time to Kill | Results of using Atrazine 4L Herbicide can be seen within 5 to 7 days. |
| Comparable Products | Simazine 4L |
| Use Caution On | Bentgrass, Kentucky Bluegrass, Fescue, Fine, Fescue, Tall, Ryegrass |
| EPA Registration # | 19713-11 |
