Weedar 64 is a non-volatile, premium DMA-4 formulation that is sequestered to 1,500-ppm water hardness. This “workhorse” of 2,4-D amines is registered for cereal grains, corn, sorghum, rice, sugarcane, irrigation ditches, pastures/rangeland, non-cropland, tree injection, lakes-water hyacinth, and tree fruit / nut crops.
| Active Ingredient | % |
|---|
| 2,4-D | 46.80 % |
| Other Ingredients | 53.20 % |
Label & SDS
Mode of Action
Lipid Synthesis Inhibitors
Site of Action
(1) ACCase Inhibitor
Safe On
No safe on treatments listed. Please, review the label or contact the merchant for more information.
Not Safe On
Maximum Yearly Limits
Maximum of 3 pints (1.5 lbs. ae) per acre per application. Maximum of 6 pints (3.0 lbs. ae) per acre per year, excluding spot treatments.
After Seeding Instructions
Do not apply to newly seeded area until grass is well established (five-leaf stage or later) and then use a maximum of 2/3 pint per acre.
Surfactant Instructions
Adding oil, wetting agent, or other surfactants to the spray may increase effectiveness on weeds but also may reduce selectivity to crops, resulting in crop damage.
CertainLabel™
Weedar 64 Optimized Application Label Rate Calculator
Legend:
Control
Suppression
No Control
Spot Treatment:
per
Blanket Treatment:
per
1
| Grass / Turf Types | Safe |
|---|---|
| St. Augustinegrass |
|
1
Jump to
CertainLabel™ Weedar 64 Label Rates & Calculator
for
St. Augustinegrass
Spot Treatment
No spot treatment rates listed. Please, review the label or contact the merchant for more information.
Broadcast Treatment
No broadcast treatment rates listed. Please, review the label or contact the merchant for more information.
1
1
Jump to
CertainLabel™ Weedar 64 Label Rates & Calculator
for
these 59 weeds
Spot Treatment
per
Label Rate:
0.73 - 1.1 fluid ounces per gallon
Cost Effectiveness:
Makes 116.364 - 175.342 gallons
at a cost of
$0.19 - $0.29 per gallon
at a cost of
$0.19 - $0.29 per gallon
Blanket Treatment
per
Label Rate:
0.73 - 1.1 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 116364 - 175342 square feet
at a cost of
$0.19 - $0.29 per 1,000 sqft
at a cost of
$0.19 - $0.29 per 1,000 sqft
2
2
Jump to
CertainLabel™ Weedar 64 Label Rates & Calculator
for
these 29 weeds
Spot Treatment
per
Label Rate:
0.73 - 1.1 fluid ounces per gallon
Cost Effectiveness:
Makes 116.364 - 175.342 gallons
at a cost of
$0.19 - $0.29 per gallon
at a cost of
$0.19 - $0.29 per gallon
Blanket Treatment
per
Label Rate:
0.73 - 1.1 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 116364 - 175342 square feet
at a cost of
$0.19 - $0.29 per 1,000 sqft
at a cost of
$0.19 - $0.29 per 1,000 sqft
Instructions:
These species may require repeat applications and/or use of the higher specified rate even under ideal conditions for application.
3
| Weeds | Pre- Emergent |
Post-Emergent |
|---|---|---|
| Cinquefoil, Rough |
|
|
| Evening Primrose, Cutleaf |
|
|
| Geranium, Carolina |
|
|
| Horsetail |
|
|
| Horseweed |
|
|
| Marestail |
|
|
| Purslane, Common |
|
|
3
Jump to
CertainLabel™ Weedar 64 Label Rates & Calculator
for
these 7 weeds
Spot Treatment
per
Label Rate:
0.73 - 1.1 fluid ounces per gallon
Cost Effectiveness:
Makes 116.364 - 175.342 gallons
at a cost of
$0.19 - $0.29 per gallon
at a cost of
$0.19 - $0.29 per gallon
Blanket Treatment
per
Label Rate:
0.73 - 1.1 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 116364 - 175342 square feet
at a cost of
$0.19 - $0.29 per 1,000 sqft
at a cost of
$0.19 - $0.29 per 1,000 sqft
Instructions:
This product may not be used to control this weed species in the State of California.
4
| Weeds | Pre- Emergent |
Post-Emergent |
|---|---|---|
| Bittercress, Smallflowered |
|
|
| Bullnettle |
|
|
| Clover, Red |
|
|
| Copperleaf, Virginia |
|
|
| Spurge, Leafy |
|
|
4
Jump to
CertainLabel™ Weedar 64 Label Rates & Calculator
for
these 5 weeds
Spot Treatment
per
Label Rate:
0.73 - 1.1 fluid ounces per gallon
Cost Effectiveness:
Makes 116.364 - 175.342 gallons
at a cost of
$0.19 - $0.29 per gallon
at a cost of
$0.19 - $0.29 per gallon
Blanket Treatment
per
Label Rate:
0.73 - 1.1 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 116364 - 175342 square feet
at a cost of
$0.19 - $0.29 per 1,000 sqft
at a cost of
$0.19 - $0.29 per 1,000 sqft
Instructions:
These species may require repeat applications and/or use of the higher specified rate even under ideal conditions for application. This product may not be used to control this weed species in the State of California.
5
| Weeds | Pre- Emergent |
Post-Emergent |
|---|---|---|
| Pigweed |
|
|
5
Jump to
CertainLabel™ Weedar 64 Label Rates & Calculator
for
Pigweed
Spot Treatment
per
Label Rate:
0.73 - 1.1 fluid ounces per gallon
Cost Effectiveness:
Makes 116.364 - 175.342 gallons
at a cost of
$0.19 - $0.29 per gallon
at a cost of
$0.19 - $0.29 per gallon
Blanket Treatment
per
Label Rate:
0.73 - 1.1 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 116364 - 175342 square feet
at a cost of
$0.19 - $0.29 per 1,000 sqft
at a cost of
$0.19 - $0.29 per 1,000 sqft
Instructions:
Control of pigweeds in the High Plains area of Texas and Oklahoma may not be satisfactory with this product.