ENVIRONMENTAL SCIENCE U.S., LLC · Sulfometuron 75% · EPA Reg 101563-168 · HERBICIDE TERRESTRIAL
Document last checked 2024-09-12
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This herbicide contains the active ingredient sulfomethuron-methyl. It is used outdoors to control herbaceous weeds in conifer site preparation and conifer release applications. It is applied to various conifer species, including various pines, spruce, redwood, Douglas fir, grand fir, hemlock, lodgepole pine, western larch, western white pine, white fir, and western red cedar.
Pests covered (94)
herbaceous weedsCOMMON YARROWRAGWEEDWESTERN RAGWEEDMUSTARDYELLOW ROCKETBLACK MUSTARDPIGWEEDSEASIDE HELIOTROPECHICKWEEDBOUNCINGBETCOMMON CHICKWEEDPRICKLY COONTAILSPREADING ORACHRYEGRASSITALIAN RYEGRASSNARROW PANICUMFALL PANICUMBAHIAGRASSREED CANARYGRASSCRABAPPLEBEDSTRAWANNUAL BLUEGRASSKENTUCKY BLUEGRASSFOXTAILYELLOW FOXTAILJOHNSONGRASSMEDUSAHEADWHEAT (VOLUNTEER)INDIANGRASSANNUAL RYEGRASSCOMMON SPEEDWELLWILD CARROTSWEETCLOVERYELLOW SWEETCLOVERKUDZUCRIMSON CLOVERVETCHCOMMON MALLOWLITTLE MALLOWWILLOWWEEDFIREWEEDPOKEWEEDBUCKHORN PLANTAINHORSETAILTURKEY MULLEINSPOTTED SPURGEREDSTEM FILAREEWHITESTEM FILAREECAROLINA GERANIUMANNUAL GRASSESPERENNIAL GRASSESWILD OATSIGNALGRASSBROADLEAF PANICUMSMOOTH BROMERIPGUT BROMERED BROMECHEATDOWNY BROMEBERMUDAGRASSJOINTED GOATGRASSCRABGRASSSALTGRASSBARNYARDGRASSFESCUERED FESCUEALTA FESCUEFOXTAIL BARLEYLITTLE BARLEYSPRANGLETOPSHEPHERDSPURSEWHITETOPHOARY CRESSTANSYMUSTARDPEPPERWEEDTUMBLE MUSTARDMUSK THISTLEPURPLE STARTHISTLEOXEYE DAISYCANADA THISTLEHORSEWEEDDOGFENNELWHITE SNAKEROOTSUNFLOWERTANSY RAGWORTGOLDENRODANNUAL SOWTHISTLECOMMON DANDELIONFOXTAIL FESCUEBURCLOVERCURLY DOCKWILD BLACKBERRYYELLOW NUTSEDGE
Areas treatable (110)
Conifer Site Preparation (Southeast)Conifer Site Preparation (Northeast and Lake States)Conifer Site Preparation (West)Conifer Release (Southeast)Conifer Release (Northeast and Lake States)Conifer Release (West)TAMARACK (SOIL TREATMENT)EASTERN WHITE PINE (TRANSPLANTS)NORTHERN RED OAK (SOIL TREATMENT)SWEETGUM (SOIL TREATMENT)YELLOW POPLAR (SOIL TREATMENT)POPLAR (HYBRIDS) (SOIL TREATMENT)POPLAR (HYBRIDS) (DORMANT APPLICATION)GREEN ASH (SOIL TREATMENT)BERMUDAGRASS (ORNAMENTAL TURF) (FOLIAR TREATMENT)BERMUDAGRASS (ORNAMENTAL TURF) (SOIL TREATMENT)FOREST TREES (FOLIAR TREATMENT)BAHIAGRASS (FOLIAR TREATMENT)AMERICAN SYCAMORE (SOIL TREATMENT)AMERICAN SYCAMORE (DORMANT APPLICATION)BAHIAGRASS (ORNAMENTAL TURF) (SOIL TREATMENT)CRESTED WHEATGRASS (FOLIAR TREATMENT)CRESTED WHEATGRASS (SOIL TREATMENT)GRAND FIR (SOIL TREATMENT)BLACK SPRUCE (FOREST) (SOIL TREATMENT)SLASH PINE (TRANSPLANTS)ROADSIDES (FOLIAR TREATMENT)CHESTNUT OAK (SOIL TREATMENT)LARCH (SOIL TREATMENT)LONGLEAF PINE (TRANSPLANTS)AERIAL APPLICATION (FIXED WING)AERIAL APPLICATION (ROTARY AIRCRAFT)PONDEROSA PINE (SOIL TREATMENT)BALDCYPRESS (SOIL TREATMENT)LONGLEAF PINE (FOREST) (SOIL TREATMENT)COAST REDWOOD (FOREST) (SOIL TREATMENT)ROADSIDES (SOIL TREATMENT)ROADWAYS (SOIL TREATMENT)RIGHTS-OF-WAY (RAILROAD) (FOLIAR TREATMENT)RIGHTS-OF-WAY (RAILROAD) (SOIL TREATMENT)RIGHTS-OF-WAY (PIPELINE) (FOLIAR TREATMENT)RIGHTS-OF-WAY (UTILITY) (FOLIAR TREATMENT)RIGHTS-OF-WAY (UTILITY) (SOIL TREATMENT)RIGHTS-OF-WAY (PIPELINE) (SOIL TREATMENT)LOBLOLLY PINE (TRANSPLANTS)LODGEPOLE PINE (SOIL TREATMENT)INDUSTRIAL PLANT SITESINDUSTRIAL SITES (FOLIAR TREATMENT)STORAGE YARDS (FOLIAR TREATMENT)LUMBER YARDS (FOLIAR TREATMENT)NONCROP AREAS (SOIL TREATMENT)MILITARY INSTALLATIONS (OUTDOOR) (SOIL TREATMENT)AIRPORTS (FOLIAR TREATMENT)AIRPORTS (SOIL TREATMENT)TANK MIXPRE-PAVING TREATMENT (ASPHALT) (SOIL TREATMENT)DOUGLAS-FIR (SOIL TREATMENT)PAVED AREAS (PRE-PAVING APPLICATION) (SOIL TREATMENT)TANK FARMS (PETROLEUM) (FOLIAR TREATMENT)PETROLEUM PUMPING STATION (FOLIAR TREATMENT)INDUSTRIAL SITES (SOIL TREATMENT)STORAGE YARDS (SOIL TREATMENT)TANK FARMS (PETROLEUM) (SOIL TREATMENT)LUMBER YARDS (SOIL TREATMENT)SLASH PINE (FOREST) (SOIL TREATMENT)PETROLEUM PUMPING STATION (SOIL TREATMENT)PARKING LOTSPRE-PAVING TREATMENT (ASPHALT)WALKS (CONCRETE)NONCROP AREAS (FOLIAR TREATMENT)MILITARY INSTALLATIONS (OUTDOOR) (FOLIAR TREATMENT)CHESTNUT (SOIL TREATMENT)WESTERN WHITE PINE (SOIL TREATMENT)SMOOTH BROMEGRASS (ORNAMENTAL TURF) (FOLIAR TREATMENT)BROMEGRASS (SMOOTH) (SOIL TREATMENT)WATER OAK (SOIL TREATMENT)WHITE ASH (SOIL TREATMENT)WHITE ASH (DORMANT APPLICATION)WHITE FIR (SOIL TREATMENT)WHITE OAK (SOIL TREATMENT)SLASH PINE (SOIL TREATMENT)RED MAPLE (SOIL TREATMENT)CENTIPEDEGRASS (SOIL TREATMENT)PINE (FOREST) (SOIL TREATMENT)HEMLOCK (SOIL TREATMENT)RED PINE (SOIL TREATMENT)RIGHTS-OF-WAY (HIGHWAY)DITCHBANKSDRAINAGE DITCH BANKS (FOLIAR TREATMENT)PIN OAK (SOIL TREATMENT)VIRGINIA PINE (TRANSPLANTS)SOUTHERN RED OAK (SOIL TREATMENT)HARDWOOD FOREST TREES (FOLIAR TREATMENT)CONIFER PLANTINGS (SOIL TREATMENT)OAK (TRANSPLANTS)CONIFER RELEASE (SOIL TREATMENT)CANALS (DRAINED)WESTERN LARCH (SOIL TREATMENT)JACK PINE (FOREST) (DORMANT APPLICATION)LOBLOLLY PINE (FOREST) (SOIL TREATMENT)RIGHTS-OF-WAY (FOLIAR TREATMENT)RIGHTS-OF-WAY (SOIL TREATMENT)FENCEROWS (NONAGRICULTURAL) (FOLIAR TREATMENT)FENCEROWS (NONAGRICULTURAL) (SOIL TREATMENT)BARRIER STRIPS (FOLIAR TREATMENT)VIRGINIA PINE (FOREST) (SOIL TREATMENT)VIRGINIA PINE (FOREST) (DORMANT APPLICATION)CENTIPEDEGRASS (FOLIAR TREATMENT)ORNAMENTAL TURF (FOLIAR TREATMENT)ORNAMENTAL GROUND COVERS
How to treat each type of area 12
Conifer Site Preparation (Southeast)
| Target pest |
Location |
Rate |
Unit |
Label notes |
| herbaceous weeds |
Outdoor |
2 to 4.25 |
ounces |
for loblolly, longleaf, slash, and Virginia pine. (0.094 - 0.199 pounds of the active ingredient sulfomethuron-methyl) per acre. Pines may be transplanted in treated areas in the planting season following application. |
Conifer Site Preparation (Northeast and Lake States)
| Target pest |
Location |
Rate |
Unit |
Label notes |
| herbaceous weeds |
Outdoor |
2 to 4 |
ounces |
for black spruce per acre. Transplant not less than 13 months after treatment. |
| herbaceous weeds |
Outdoor |
1 to 2 |
ounces |
for red pine per acre. Transplant the following spring or summer but not less than 3 months after application. Areas receiving 1/2 to 1 ounce per acre may be transplanted a minimum of 30 days following application. |
Conifer Site Preparation (West)
| Target pest |
Location |
Rate |
Unit |
Label notes |
| herbaceous weeds |
Outdoor |
2 to 4 |
ounces |
for coastal redwood, Douglas fir, grand fir, hemlock, lodgepole pine, ponderosa pine, western larch, western white pine and white fir per acre. Where western red cedar is a primary species apply 2 to 3 ounces per acre, as higher rates may cause unacceptable injury. For ponderosa pine in California and other arid areas, apply in the fall and transplant the following spring. |
Conifer Release (Southeast)
| Target pest |
Location |
Rate |
Unit |
Label notes |
| herbaceous weeds |
Outdoor |
2 to 4.25 |
ounces |
for loblolly, longleaf, slash or Virginia pine per acre. |
| herbaceous weeds |
Outdoor |
1 to 1 1/2 |
ounces |
for eastern white pine per acre. |
| herbaceous weeds |
Outdoor |
1 to 2 |
ounces |
for shortleaf pine per acre. |
Conifer Release (Northeast and Lake States)
| Target pest |
Location |
Rate |
Unit |
Label notes |
| herbaceous weeds |
Outdoor |
2 to 4.25 |
ounces |
for jack or Virginia pine per acre. |
| herbaceous weeds |
Outdoor |
1 to 1 1/2 |
ounces |
for eastern white pine per acre. |
| herbaceous weeds |
Outdoor |
1 1/2 to 3 |
ounces |
for white spruce per acre. |
| herbaceous weeds |
Outdoor |
1/2 to 2 |
ounces |
for red pine per acre not less than 1 year following transplanting. |
Conifer Release (West)
| Target pest |
Location |
Rate |
Unit |
Label notes |
| herbaceous weeds |
Outdoor |
2 to 4 |
ounces |
for coastal redwood, Douglas fir, grand fir, hemlock, lodgepole pine, ponderosa pine, western larch, western white pine and white fir per acre. Where western red cedar is a primary species apply 2 to 3 ounces per acre, as higher rates may cause unacceptable injury. |
Mixing instructions 2
| For pests |
Location |
Amount |
Per |
Label notes |
| broader spectrum of weeds in loblolly, slash, or longleaf plantings |
Outdoor |
2 - 4 |
ounces OUST® XP HERBICIDE |
plus 1 1/2 - 3 pints of Velpar L VU herbicide or 8 - 16 ounces of Velpar DF VU. Use lower rates of both products on coarse sandy textured soils low in organic matter. Use higher rates on fine textured soils high in clay content or organic matter. |
| bermudagrass and Johnsongrass in stands of loblolly pine |
Outdoor |
2 |
ounces of OUST® XP HERBICIDE |
plus 4 to 6 fluid ounces of imazapyr (4 pounds active per gallon). |
Timing & weather
- Apply OUST® XP HERBICIDE sprays before herbaceous weeds emerge or shortly after.
- Apply impregnated fertilizer before weeds emerge.
- For ponderosa pine in California and other arid areas, apply in the fall and transplant the following spring.
- For the best results, make the application during late winter through spring when weeds first emerge.
- Imazapyr may temporarily inhibit pine growth if it is applied when pine is actively growing.
- Make applications when trees are dormant.
Use restrictions 3
- When tank mixing use the most restrictive limitations from the labels of both products.
- Users must follow the most restrictive directions for use and precautionary statements of each product in the tank mixture.
- Applications at budbreak and later stages of active growth may severely injure or kill trees.