Horsepower® is a three-way, selective post-emergent herbicide that controls dandelions, chickweeds, knotweed, clover, cocklebur, plantains, oxalis, spurge and a wide range of other broadleaf weeds. With its highly concentrated formulation, Horsepower treats up to 4 acres per gallon. And since Horsepower doesn’t contain 2,4-D, it’s an ideal weed control solution for 2,4-D sensitive areas.
Label & SDS
Mode of Action
Lipid Synthesis Inhibitors, Growth Regulators
Site of Action
(1) ACCase Inhibitor, (4) Specific site unknown
Available on Amazon
Available on Do My Own
Safe On
Click on a grass type below to see safe application rates:
Annual Ryegrass, Bahiagrass, Bermudagrass, Fine Fescue, Kentucky Bluegrass, Perennial Ryegrass, Red Fescue, Tall Fescue, Zoysiagrass, and Bentgrass
Not Safe On
No not safe on treatments listed. Please, review the label or contact the merchant for more information.
Maximum Yearly Limits
The maximum application rate is 3.2 pints of product (1.5 lb ae) per acre per year. Limit two applications per year with a minimum retreatment interval of 21 days. Aerial application is prohibited.
Time Between Applications
Minimum retreatment interval of 21 days.
Mowing Instructions
Turf should not be mowed 1
to 2 days before and following application.
Effective Temperature Range
Avoid broadcast applications when air temperature
exceeds 90 degrees. When using small, spot treatment applications in temperature over 90 degrees, turf injury may occur.
Before Seeding Instructions
Reseed no sooner than 3 to 4 weeks after application of this product.
Surfactant Instructions
Adding oil, wetting
agent, or other surfactant to the spray may be used to increase effectiveness on weeds but doing so may reduce selectivity to turf
resulting in turf damage.
CertainLabel™
Horsepower Optimized Application Label Rate Calculator
Legend:
Control
Suppression
No Control
Spot Treatment:
per
Blanket Treatment:
per
1
| Grass / Turf Types | Safe |
|---|---|
| Annual Ryegrass |
|
| Bahiagrass |
|
| Bermudagrass |
|
| Fine Fescue |
|
| Kentucky Bluegrass |
|
| Perennial Ryegrass |
|
| Red Fescue |
|
| Tall Fescue |
|
| Zoysiagrass |
|
1
Jump to
CertainLabel™ Horsepower Label Rates & Calculator
for
these 9 turf types
Spot Treatment
per
Label Rate:
0.73 - 1.1 fluid ounces per gallon
Cost Effectiveness:
Makes 29.091 - 43.836 gallons
at a cost of
$1.05 - $1.58 per gallon
at a cost of
$1.05 - $1.58 per gallon
Blanket Treatment
per
Label Rate:
0.73 - 1.1 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 29091 - 43836 square feet
at a cost of
$1.05 - $1.58 per 1,000 sqft
at a cost of
$1.05 - $1.58 per 1,000 sqft
2
| Grass / Turf Types | Safe |
|---|---|
| Bentgrass |
|
2
Jump to
CertainLabel™ Horsepower Label Rates & Calculator
for
Bentgrass
Spot Treatment
per
Label Rate:
0.73 - 1.1 fluid ounces per gallon
Cost Effectiveness:
Makes 29.091 - 43.836 gallons
at a cost of
$1.05 - $1.58 per gallon
at a cost of
$1.05 - $1.58 per gallon
Instructions:
Excluding golf course greens.
Blanket Treatment
per
Label Rate:
0.73 - 1.1 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 29091 - 43836 square feet
at a cost of
$1.05 - $1.58 per 1,000 sqft
at a cost of
$1.05 - $1.58 per 1,000 sqft
Instructions:
Excluding golf course greens.
1
1
Jump to
CertainLabel™ Horsepower Label Rates & Calculator
for
these 126 weeds
Spot Treatment
per
Label Rate:
0.73 - 1.1 fluid ounces per gallon
Cost Effectiveness:
Makes 29.091 - 43.836 gallons
at a cost of
$1.05 - $1.58 per gallon
at a cost of
$1.05 - $1.58 per gallon
Blanket Treatment
per
Label Rate:
0.73 - 1.1 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 29091 - 43836 square feet
at a cost of
$1.05 - $1.58 per 1,000 sqft
at a cost of
$1.05 - $1.58 per 1,000 sqft