Herbicide label reference
Revolver
2.34% foramsulfuron suspension concentrate · EPA Reg. No. 101563-53
What’s in this formulation
- Foramsulfuron
- 2.34%
Active ingredient percentages are by weight. Compare the exact registration number and formulation on your container.
Label scope and conditions
EPA-accepted master label, residential-lawn use only. Marketed labels may use a subset of these claims. Match the registration and formulation, and follow the label on your container; this reference is not a replacement for it.
- Bermudagrass and zoysiagrass use includes residential lawns. Buffalograss has separate spot-treatment directions and is not registered for that use in California.
- Do not use on cool-season grasses you want to keep. Follow weed-specific temperature, spot-treatment, adjuvant and repeat-application requirements.
This page summarizes coverage and does not provide application rates or mixing instructions. Use the complete label on your container for directions, protective equipment, reentry, environmental precautions, and restrictions.
Listed lawn grasses
- Bermudagrass (check cultivar) — Established turf only. Follow the grass-specific rate and cultivar restrictions in the label.
- Zoysiagrass (check cultivar) — Established turf only. Follow the grass-specific rate and cultivar restrictions in the label.
- Buffalograss — Spot treatment for cool-season grasses only under the separate buffalograss directions, PDF p. 11. Not registered for this use in California.
A listed grass is not an unconditional compatibility claim. Cultivar, establishment, temperature, stress, timing, and rate restrictions still apply.
Source record
Current registrant in the checked EPA record: ENVIRONMENTAL SCIENCE U.S., LLC.
Source label registration: 101563-53. Accepted 2024-11-20. Transferred registrations can have a source label bearing the prior registration number.
Residential-lawn label claims
Weeds and coverage
“Conditional activity” flags undifferentiated control/suppression or unresolved weed identity and label conditions. “No activity” is an explicit label entry. An absent weed is not evidence that the product cannot affect it.
| Weed | Timing & activity | Conditions & evidence |
|---|---|---|
| Annual bluegrass | Postemergence Listed control | Use the label’s weed-specific rate and treatment pattern. Goosegrass and large volunteer ryegrass can need multiple applications. PDF pp. 9–11; transition, weed-control and Use Rate Table |
| Bahiagrass | Postemergence Listed control | Use the label’s weed-specific rate and treatment pattern. Goosegrass and large volunteer ryegrass can need multiple applications. PDF pp. 9–11; transition, weed-control and Use Rate Table |
| Bentgrass | Postemergence Listed control | This claim is limited to removal of overseeded grasses from bermudagrass during spring transition. PDF pp. 9–11; removal from overseeded bermudagrass |
| Burclover | Postemergence Suppression | Spot-treatment suppression only; follow the seasonal and repeat-treatment directions. PDF p. 11; Spot Treatment Weed Suppression |
| Carolina false dandelion | Postemergence Listed control | Use the label’s weed-specific rate and treatment pattern. Goosegrass and large volunteer ryegrass can need multiple applications. PDF pp. 9–11; transition, weed-control and Use Rate Table |
| Dallisgrass | Postemergence Suppression | Spot-treatment suppression only; follow the seasonal and repeat-treatment directions. PDF p. 11; Spot Treatment Weed Suppression |
| Doveweed | Postemergence Listed control | Use the label’s weed-specific rate and treatment pattern. Goosegrass and large volunteer ryegrass can need multiple applications. PDF pp. 9–11; transition, weed-control and Use Rate Table |
| Goosegrass | Postemergence Listed control | Use the label’s weed-specific rate and treatment pattern. Goosegrass and large volunteer ryegrass can need multiple applications. PDF pp. 9–11; transition, weed-control and Use Rate Table |
| Henbit | Postemergence Listed control | Use the label’s weed-specific rate and treatment pattern. Goosegrass and large volunteer ryegrass can need multiple applications. PDF pp. 9–11; transition, weed-control and Use Rate Table |
| Hop clover | Postemergence Suppression | Spot-treatment suppression only; follow the seasonal and repeat-treatment directions. PDF p. 11; Spot Treatment Weed Suppression |
| Large crabgrass | Postemergence Suppression | Spot-treatment suppression only; follow the seasonal and repeat-treatment directions. PDF p. 11; Spot Treatment Weed Suppression |
| Little barley | Postemergence Listed control | Use the label’s weed-specific rate and treatment pattern. Goosegrass and large volunteer ryegrass can need multiple applications. PDF pp. 9–11; transition, weed-control and Use Rate Table |
| Mouseear chickweed | Postemergence Suppression | Spot-treatment suppression only; follow the seasonal and repeat-treatment directions. PDF p. 11; Spot Treatment Weed Suppression |
| Rough bluegrass | Postemergence Listed control | This claim is limited to removal of overseeded grasses from bermudagrass during spring transition. PDF pp. 9–11; removal from overseeded bermudagrass |
| Ryegrass (label group) | Postemergence Listed control | Use the label’s weed-specific rate and treatment pattern. Goosegrass and large volunteer ryegrass can need multiple applications. PDF pp. 9–11; transition, weed-control and Use Rate Table |
| Tall fescue | Postemergence Listed control | Use the label’s weed-specific rate and treatment pattern. Goosegrass and large volunteer ryegrass can need multiple applications. PDF pp. 9–11; transition, weed-control and Use Rate Table |
| White clover | Postemergence Suppression | Spot-treatment suppression only; follow the seasonal and repeat-treatment directions. PDF p. 11; Spot Treatment Weed Suppression |