4-Speed® XT herbicide provides fast, effective post-emergent control of a wide range of broadleaf weeds in a variety of settings including golf courses and professional turf. The power behind the performance is a unique blend of active ingredients. In 4-Speed XT, the tough weed killer, triclopyr, is combined with 2,4-D, dicamba and pyraflufen-ethyl to create a combination lethal to virtually any broadleaf weed
| Active Ingredient | % |
|---|
| 2,4-D | 41.92 % |
| Triclopyr | 4.81 % |
| Dicamba | 3.46 % |
| Pyraflufen | 0.07 % |
| Other Ingredients | 49.74 % |
Label & SDS
Mode of Action
Lipid Synthesis Inhibitors, Growth Regulators, Cell Membrane Disruptors
Site of Action
(1) ACCase Inhibitor, (4) Specific site unknown, (14) PPO Inhibitor
Safe On
Click on a grass type below to see safe application rates:
Annual Ryegrass, Bahiagrass, Fine Fescue, Kentucky Bluegrass, Perennial Ryegrass, Red Fescue, Tall Fescue, Zoysiagrass, Bentgrass, and Bermudagrass
Not Safe On
No not safe on treatments listed. Please, review the label or contact the merchant for more information.
Maximum Yearly Limits
Make no more than 2 broadcast applications per year, excluding spot treatments, with a minimum of 30 days between applications. Do not apply more than 5.24 pints of this product per acre per application. Do not apply more than 10.48 pints of this product per acre per year, including all broadcast and spot treatments combined.
Time Between Applications
Minimum of 30 days between applications.
Mowing Instructions
For best results, turf should not be mowed for 1 to 2 days before or after application to maximize leaf surface of the target plant and aid in translocation.
Effective Temperature Range
When air temperature exceeds 90ºF, temporary turf injury may result from broadcast applications.
Water Instructions
For optimum results, do not apply if rainfall is expected within 4 hours; delay irrigation cycle for 24 hours.
Before Seeding Instructions
Reseed no sooner than 2 weeks after application of this product. In areas that are slit seeded, to assure seed soil contact, reseeding interval may be reduced to 7 days.
After Seeding Instructions
Do not apply to newly seeded grasses until well established unless discoloration or damage can be tolerated.
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. Failure to observe the above precautions may result in injury to turf and other desirable vegetation.
CertainLabel™
4-Speed XT Optimized Application Label Rate Calculator
Legend:
Control
Suppression
No Control
Spot Treatment:
per
Blanket Treatment:
per
1
| Grass / Turf Types | Safe |
|---|---|
| Annual Ryegrass |
|
| Bahiagrass |
|
| Fine Fescue |
|
| Kentucky Bluegrass |
|
| Perennial Ryegrass |
|
| Red Fescue |
|
| Tall Fescue |
|
| Zoysiagrass |
|
1
Jump to
CertainLabel™ 4-Speed XT Label Rates & Calculator
for
these 8 turf types
Spot Treatment
per
Label Rate:
1.1 - 1.5 fluid ounces per gallon
Cost Effectiveness:
Makes 21.333 - 29.091 gallons
at a cost of
$1.72 - $2.34 per gallon
at a cost of
$1.72 - $2.34 per gallon
Blanket Treatment
per
Label Rate:
1.1 - 1.5 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 21333 - 29091 square feet
at a cost of
$1.72 - $2.34 per 1,000 sqft
at a cost of
$1.72 - $2.34 per 1,000 sqft
2
| Grass / Turf Types | Safe |
|---|---|
| Bentgrass |
|
2
Jump to
CertainLabel™ 4-Speed XT Label Rates & Calculator
for
Bentgrass
Spot Treatment
per
Label Rate:
0.67 fluid ounces per gallon
Cost Effectiveness:
Makes 47.761 gallons
at a cost of
$1.05 per gallon
at a cost of
$1.05 per gallon
Instructions:
Apply on closely mowed Bentgrass, preferably in May or mid-August through September. Slight turf yellowing will disappear after about one week.
Blanket Treatment
per
Label Rate:
0.67 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 47761 square feet
at a cost of
$1.05 per 1,000 sqft
at a cost of
$1.05 per 1,000 sqft
Instructions:
Apply on closely mowed Bentgrass, preferably in May or mid-August through September. Slight turf yellowing will disappear after about one week.
3
| Grass / Turf Types | Safe |
|---|---|
| Bermudagrass |
|
3
Jump to
CertainLabel™ 4-Speed XT Label Rates & Calculator
for
Bermudagrass
Spot Treatment
per
Label Rate:
1.1 - 1.5 fluid ounces per gallon
Cost Effectiveness:
Makes 21.333 - 29.091 gallons
at a cost of
$1.72 - $2.34 per gallon
at a cost of
$1.72 - $2.34 per gallon
Blanket Treatment
per
Label Rate:
1.1 - 1.5 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 21333 - 29091 square feet
at a cost of
$1.72 - $2.34 per 1,000 sqft
at a cost of
$1.72 - $2.34 per 1,000 sqft
Instructions:
If Bermudagrass is dormant, up to 4 pints per acre may be used. However, some hybrid Bermudagrasses may be sensitive to this product. Contact your local extension service weed control specialist.
1
1
Jump to
CertainLabel™ 4-Speed XT Label Rates & Calculator
for
these 77 weeds
Spot Treatment
per
Label Rate:
1.1 - 1.5 fluid ounces per gallon
Cost Effectiveness:
Makes 21.333 - 29.091 gallons
at a cost of
$1.72 - $2.34 per gallon
at a cost of
$1.72 - $2.34 per gallon
Blanket Treatment
per
Label Rate:
1.1 - 1.5 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 21333 - 29091 square feet
at a cost of
$1.72 - $2.34 per 1,000 sqft
at a cost of
$1.72 - $2.34 per 1,000 sqft
