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4-Speed XT provides rapid, effective control of a wide range of post-emergent broadleaf weeds in many settings, including cemeteries, athletic fields, golf courses (aprons, fairways, roughs, and tees), parks, lawns, sod farms, and other professional turf sites. The high-powered blend of four active ingredients creates a combination that is deadly to almost any broadleaf weed, including tough weeds like ground ivy, violet, and spurge. Results will noticed in as little as 24 hours.
Available Sizes:
Product Documents
| Active Ingredient | 2,4-D, 2-ethylhexyl ester 41.92% Dicamba 3.46% Pyraflufen-ethyl 0.07% >br> Triclopyr, butoxyethyl ester 4.81% |
|---|---|
| Target pests |
Beggarweed, Bindweed, Black medic, Buckhorn, Chickweed, Dandelion, Florida pusley, Frenchweed, Goldenrod, Ground ivy, Henbit, Jimsonweed, Knawel, Knotweed, Kochia, Lambsquarters, Lespedeza, Little starwort, Mallow, Oxalis, Pennywort, Pepperweed, Pigweed, Plantain, Purslane, Ragweed, Red clover, Red sorrel, Sheep sorrel, Spurge, Thistle, Toadflax, Veronica, Vetch, Wild aster, Wild violet, White clover and many others * See label for complete list |
| For use in | Cool & Warm-Season Turf: Athletic fields, Cemeteries, Golf courses (fairways, aprons, tees and roughs), Lawns, Parks, Sod farms |
| Application |
1.1 - 1.5 oz. per 0.1 - 5 gallons of water per 1,000 sq. ft. 3 - 4 pints per 3 - 220 gallons of water per acre * See label for complete application instructions |
| Pet safe | Yes, when used as directed on label |
| Formulation | Professional Product |
| NOT FOR SALE TO |
AK, DC, HI, PR CA, CT, MA, NJ, NM, VT (Restricted To Licensed Applicators Only) LA, TX, WA (1 & 2.5 Gallon Sizes Restricted To Licensed Applicators Only) |
| Shipping Weight | 21.25 lbs |
| Manufacturer | Nufarm |
| UPC | 191662011289 |
| EPA Registration | 228-590 |
Works as advertised
By Matthew on 07/13/2016
Was using Trimec 992 before I bought this. The Trimec didn't touch the Wild Violet in the yard but this certainly did. It is a lot more expensive than the Trimec but it finally killed the tough weeds. Trimec is fine for most weeds and usually needed a second application to kill them all but this worked great on all the weeds and no need for a second application. Works as advertised and worth it for the cost.
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23 of 25 people found this review helpful
Better than anything at the big box store
By Stephen on 05/11/2019
In my first application to wild violets I saw the plant wilt far more than any other broadleaf spray from the box stores. I have no doubt 4 speed will significantly slow the growth of wild violets with consistent applications.
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11 of 11 people found this review helpful
Looking Good and is working
By Claude on 06/07/2019
looks like it is working on my Wild Violet problem - as well as all other weeds in 24 hrs - wilting . dandelions as well curling up- in 1 week 50 % gone but I will take couple of weeks I guess - Went this this version - Weed B Gone did not work - as well as Oxylic Weed killer
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8 of 8 people found this review helpful
Did the Job!
By Joe on 04/25/2025
Yes, a surfactant can be used with 4-Speed XT Selective Herbicide however the product label advises the following: "Adding oil, wetting agent, or other surfactant to the spray may be used to increase the effectiveness on weeds, but doing so may reduce the selectivity to turf resulting in turf damage.
It is recommended to do a small compatibility test in a glass jar prior to the application. Review the full product label for more information and Compatibility Instructions on page 5.
Yes, a surfactant can be added to 4-Speed XT Selective Herbicide to increase effectiveness on weeds but is not required. The label does state that if one is added some turf damage may occur due to reduced selectivity.
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3 of 3 people found this answer helpful
Items 1 - 3 (of 3 Total)
4-Speed XT Selective Herbicide
Rating: 4.5 (4 Reviews / 38 Q&A)
