Weedar 64 Broadleaf Herbicide, 2-Pack 2.5 Gallons, 5 Gallon Total
Weedar 64 Broadleaf Herbicide, 2-Pack 2.5 Gallons, 5 Gallon Total
$14288
Weedar® 64 Broadleaf Herbicide 2.5 Gallon helps professional applicators take on susceptible broadleaf weeds in turf, non-crop areas, ditch banks, rangeland, labeled crops, and select aquatic sites. This low-volatile DMA-4 liquid mixes into a true water solution and delivers 3.8 lb acid equivalent per gallon in a practical 2.5-gallon jug.
- Broadleaf control; targets many susceptible weeds across labeled sites
- Liquid concentrate; mixes readily into spray water
- Low-volatility formula; built for controlled 2,4-D amine programs
- Wide site fit; covers turf, ditches, non-crop, crops, and aquatics
- Group 4 action; synthetic auxin chemistry disrupts weed growth
- 2.5-gallon jug; practical size for larger property work
Choose Weedar 64 for professional broadleaf weed control with flexible liquid handling and broad site fit.
Always follow label directions.
Recommended companion treatment program
NT-MAX Lake & Pond Clarifier + Sludge & Muck Digester Rapidly restore crystal clear conditions in lakes, ponds, and lagoons using NT-MAX, a high-performance biological clarifier powered by….
After using Weedar 64, wait about 5 days before applying NT-MAX Lake & Pond Clarifier + Sludge & Muck Digester.
Bundle savings may be available below when eligible.
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Product Description
Flexible Broadleaf Weed Control for Land and Water Work
One jug of Weedar 64 gives property managers, land stewards, and aquatic applicators a flexible liquid option for susceptible broadleaf weeds. Its low-volatile 2,4-D amine formulation forms a true water solution, making it a practical fit for calibrated spray programs on turf, non-crop ground, ditch banks, rangeland, crop sites, and select aquatic work where rates and water-use rules matter.
Key Features & Benefits
| Feature | Benefit |
|---|---|
| 46.8% 2,4-D amine | Delivers 3.8 lb acid equivalent per gallon for serious broadleaf programs. |
| Low-volatile DMA-4 liquid | Supports controlled planning when drift-aware practices are followed. |
| True water solution | Mixes cleanly into spray water with agitation for calibrated equipment. |
| Broad site fit | Fits many turf, non-crop, ditch bank, rangeland, crop, and aquatic settings. |
| 2.5-gallon container | Practical size for larger properties and managed water work. |
Directions & Dosing Snapshot
| Use Case | Label Rate | Application Notes |
|---|---|---|
| Floating or emergent aquatic weeds | 2 to 4 qt per acre | Use 4 qt per acre for mature plants or dense weed mass; wet foliage thoroughly. |
| Submerged aquatic weeds | 2 to 4 ppm target; maximum 2.84 gal per acre-foot | Rate depends on acreage, average depth, species difficulty, and application method. |
| Irrigation canal and ditch banks | 2 to 4 pt per acre for annual weeds; 4 pt per acre for biennial, perennial, or susceptible woody plants | Use 20 to 100 gal spray mix per acre at low pressure; observe water-use limits. |
| Ornamental turf | 2 to 3 pt per acre for annual broadleaf weeds; 3 pt per acre for biennial or perennial weeds | Do not use on St. Augustine grass; avoid newly seeded turf until established. |
| Non-cropland and rights-of-way | 2 to 4 pt per acre for annual broadleaf weeds; 4 to 8 pt per acre for biennial or perennial weeds | Use equivalent broadcast rates for spot treatment and spray foliage to wet. |
Always follow the full label for complete directions, restrictions, and site-specific requirements.
Comparison Table
| Weedar® 64 Broadleaf Herbicide 2.5 Gallon | Generic 2,4-D amine liquid | Aquatic glyphosate herbicide | Beneficial pond microbe program | |
|---|---|---|---|---|
| Active ingredient / approach | 2,4-D amine, Group 4 synthetic auxin | 2,4-D amine; varies by product | Glyphosate-based approach; varies by label | Biological support for organic load |
| Best-fit use | Susceptible broadleaf weeds across many labeled land and aquatic sites | Similar use class; varies by registration | Vegetation control where labeled | Long-term sludge and nutrient-cycle support |
| Aquatic use fit | Directions for floating, emergent, and submerged weeds | Varies by label | Varies by label | Not a contact herbicide |
| Mixing / handling | True water solution, sequestered to 1,500-ppm water hardness | Varies by formulation | Varies by formulation | Varies by product format |
| Program role | Direct chemical weed-control tool when rates fit | Varies by label | Varies by label | Maintenance complement after biomass is controlled |
Why Choose a Low-Volatile 2,4-D Amine Liquid?
- Proven broadleaf approach: Group 4 synthetic auxin chemistry targets susceptible broadleaf weeds across many labeled programs.
- Flexible liquid handling: The true-solution formula fits calibrated spray equipment, water work, ditch banks, turf, and managed land.
- Better long-term planning: Clear rate structure helps you match the jug, site, target weed, and application method before mixing.
This product is distributed by NewTechBio as an authorized reseller. Specifications, treatment rates, and performance claims are sourced from the official EPA-approved manufacturer label and published documentation. NewTechBio does not independently verify manufacturer claims. Always read and follow the label.
Last updated for listing accuracy: 05/17/2026
What is Weedar 64 Broadleaf Herbicide used for?
Is Weedar 64 a good choice for ponds, lakes, and slow-moving water?
What aquatic weeds does Weedar 64 help control?
How much Weedar 64 do I need for floating or emergent aquatic weeds?
How does the Weedar 64 rate work for submerged weeds like Eurasian watermilfoil?
Can I use Weedar 64 on lawns, turf, ditch banks, and rights-of-way?
What equipment do I need to apply Weedar 64?
Is Weedar 64 a restricted-use herbicide?
Should I pair aquatic weed treatment with beneficial pond microbes?
How should I store Weedar 64?
Products related to this item
Product Details
SKU: NTBIO3744663-1
Category: Herbicides, Lawn & Turf
Brand: nufarm
Weight: 28 lbs
Dimensions: 10 x 18 x 16 in
Important Information
SDS: View Safety Data Sheet (PDF)
LABEL (Directions & Rates): View Product Label (PDF)
Comments/Other: Review the Product Label and SDS for directions, rates, and safety information.
Certifications / Registrations: N/A
Origin: N/A
Feature: N/A
Product Form: N/A
Product Details
Flexible Broadleaf Weed Control for Land and Water Work
One jug of Weedar 64 gives property managers, land stewards, and aquatic applicators a flexible liquid option for susceptible broadleaf weeds. Its low-volatile 2,4-D amine formulation forms a true water solution, making it a practical fit for calibrated spray programs on turf, non-crop ground, ditch banks, rangeland, crop sites, and select aquatic work where rates and water-use rules matter.
Key Features & Benefits
| Feature | Benefit |
|---|---|
| 46.8% 2,4-D amine | Delivers 3.8 lb acid equivalent per gallon for serious broadleaf programs. |
| Low-volatile DMA-4 liquid | Supports controlled planning when drift-aware practices are followed. |
| True water solution | Mixes cleanly into spray water with agitation for calibrated equipment. |
| Broad site fit | Fits many turf, non-crop, ditch bank, rangeland, crop, and aquatic settings. |
| 2.5-gallon container | Practical size for larger properties and managed water work. |
Directions & Dosing Snapshot
| Use Case | Label Rate | Application Notes |
|---|---|---|
| Floating or emergent aquatic weeds | 2 to 4 qt per acre | Use 4 qt per acre for mature plants or dense weed mass; wet foliage thoroughly. |
| Submerged aquatic weeds | 2 to 4 ppm target; maximum 2.84 gal per acre-foot | Rate depends on acreage, average depth, species difficulty, and application method. |
| Irrigation canal and ditch banks | 2 to 4 pt per acre for annual weeds; 4 pt per acre for biennial, perennial, or susceptible woody plants | Use 20 to 100 gal spray mix per acre at low pressure; observe water-use limits. |
| Ornamental turf | 2 to 3 pt per acre for annual broadleaf weeds; 3 pt per acre for biennial or perennial weeds | Do not use on St. Augustine grass; avoid newly seeded turf until established. |
| Non-cropland and rights-of-way | 2 to 4 pt per acre for annual broadleaf weeds; 4 to 8 pt per acre for biennial or perennial weeds | Use equivalent broadcast rates for spot treatment and spray foliage to wet. |
Always follow the full label for complete directions, restrictions, and site-specific requirements.
Comparison Table
| Weedar® 64 Broadleaf Herbicide 2.5 Gallon | Generic 2,4-D amine liquid | Aquatic glyphosate herbicide | Beneficial pond microbe program | |
|---|---|---|---|---|
| Active ingredient / approach | 2,4-D amine, Group 4 synthetic auxin | 2,4-D amine; varies by product | Glyphosate-based approach; varies by label | Biological support for organic load |
| Best-fit use | Susceptible broadleaf weeds across many labeled land and aquatic sites | Similar use class; varies by registration | Vegetation control where labeled | Long-term sludge and nutrient-cycle support |
| Aquatic use fit | Directions for floating, emergent, and submerged weeds | Varies by label | Varies by label | Not a contact herbicide |
| Mixing / handling | True water solution, sequestered to 1,500-ppm water hardness | Varies by formulation | Varies by formulation | Varies by product format |
| Program role | Direct chemical weed-control tool when rates fit | Varies by label | Varies by label | Maintenance complement after biomass is controlled |
Why Choose a Low-Volatile 2,4-D Amine Liquid?
- Proven broadleaf approach: Group 4 synthetic auxin chemistry targets susceptible broadleaf weeds across many labeled programs.
- Flexible liquid handling: The true-solution formula fits calibrated spray equipment, water work, ditch banks, turf, and managed land.
- Better long-term planning: Clear rate structure helps you match the jug, site, target weed, and application method before mixing.
SKU: NTBIO3744663-1
Category: Herbicides, Lawn & Turf
Brand: nufarm
Weight: 28 lbs
Dimensions: 10 x 18 x 16 in
SDS: View Safety Data Sheet (PDF)
LABEL (Directions & Rates): View Product Label (PDF)
Comments/Other: Review the Product Label and SDS for directions, rates, and safety information.
Certifications / Registrations: N/A
Origin: N/A
Feature: N/A
Product Form: N/A
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Reviews
Verified Purchase
This was recommended by the DNR. The first treatment made the lilies look 'sick'. Going to dose again if needed, but I think they are finished. Happy with results so far.
Verified Purchase
I have not found anything cheaper or better for my 14 acre lake. I mix in my 55 gallon deck mount and kill 3 acres of yellow water lily in less than 2 hours. Lasts for 2 months til shoots come back. I add in 250 lbs of NT-MAX microbes, 2 gallons aquatic roundup for the cattails, and 12 quarts blue dye concentrate and the lake looks like a magazine cover by early summer.
Verified Purchase
This is a very potent product that I have been using for 10 years. The label offers different mix options depending on the types of weeds you are going after. It is very effective and the price is great.
Verified Purchase
I use this to control Watershield that covers the entire pond if I do not stop it. Works.
Verified Purchase
Great product works a little slower on lilies but kills them all eventaully. Be patient. I use Dawn dish soap instead of a pro surfactant, cheaper.
Verified Purchase
works on Coontail, Parrotfeather. Can take up to 20 days for complete effect.
Verified Purchase
Sprayed bladderwort and dead in 8 days. A little covers a large area. Helpful customer service.
Verified Purchase
Customer support was great helping with directions! It took about 2 weeks to completely get rid of the lilies. Thanks!
