Registration, signal word, restricted-use status and approved use sites are sourced from the U.S. EPA pesticide registry. EPA Reg. No. 101563-168. View this product's label on the EPA ↗ (EPA copy accepted March 8, 2018)
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.
| Target pest | Indoor / Outdoor | Where on site | Rate | Dilution | Infestation level | Notes |
|---|---|---|---|---|---|---|
| herbaceous weeds | Outdoor | Conifer Site Preparation (Southeast) | 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. | ||
| herbaceous weeds | Outdoor | Conifer Site Preparation (Northeast and Lake States) | 2 to 4 ounces | for black spruce per acre. Transplant not less than 13 months after treatment. | ||
| herbaceous weeds | Outdoor | Conifer Site Preparation (Northeast and Lake States) | 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. | ||
| herbaceous weeds | Outdoor | Conifer Site Preparation (West) | 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. | ||
| herbaceous weeds | Outdoor | Conifer Release (Southeast) | 2 to 4.25 ounces | for loblolly, longleaf, slash or Virginia pine per acre. | ||
| herbaceous weeds | Outdoor | Conifer Release (Southeast) | 1 to 1 1/2 ounces | for eastern white pine per acre. | ||
| herbaceous weeds | Outdoor | Conifer Release (Southeast) | 1 to 2 ounces | for shortleaf pine per acre. | ||
| herbaceous weeds | Outdoor | Conifer Release (Northeast and Lake States) | 2 to 4.25 ounces | for jack or Virginia pine per acre. | ||
| herbaceous weeds | Outdoor | Conifer Release (Northeast and Lake States) | 1 to 1 1/2 ounces | for eastern white pine per acre. | ||
| herbaceous weeds | Outdoor | Conifer Release (Northeast and Lake States) | 1 1/2 to 3 ounces | for white spruce per acre. | ||
| herbaceous weeds | Outdoor | Conifer Release (Northeast and Lake States) | 1/2 to 2 ounces | for red pine per acre not less than 1 year following transplanting. | ||
| herbaceous weeds | Outdoor | Conifer Release (West) | 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 | Where | Amount | Per | Finished strength | 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). |