This table includes Natural Resources Spray Areas (Staff) for Week of December 22-26, 2025.
| Natural Resources Area | Target Species | Chemical Trade Name |
|---|---|---|
| St Vrain corridor from Boulder Creek Estates to Peschel Open Space | Russian olive, tamarisk, Siberian elm | Aquaneat |
| Sandstone Ranch Nature Area | Russian olive, tamarisk, Siberian elm | Aquaneat |
| Peschel Open Space | Russian olive, tamarisk, Siberian elm | Aquaneat |
| Lykins Gulch | Russian olive, tamarisk, Siberian elm | Aquaneat |
| Sandstone Ranch Nature Area | Kochia, Russian Thistle, Hoary Cress | Antares Pro |
|  Adrian Open Space  | Kochia, Russian Thistle, Hoary Cress | Antares Pro |
| Peschel Open Space | Kochia, Russian Thistle, Hoary Cress | Antares Pro |
| St. Vrain Corridor (Dickens Farm Park to 119th TH) | Kochia, Russian Thistle, Hoary Cress | Antares Pro |
| Roger's Grove Open Space | Kochia, Russian Thistle, Hoary Cress | Antares Pro |
