4-Speed XT Herbicide
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
Mode of Action
Lipid Synthesis Inhibitors, Growth Regulators, Cell Membrane Disruptors
Site of Action
(1) ACCase Inhibitor, (4) Specific site unknown, (14) PPO Inhibitor
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.
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.
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.
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.
4-Speed XT Optimized Application Label Rate Calculator