Invasive Plants

Musk Thistle

Invasives Projects

Rio Grande National Forest

  • FY23 survey inventory focused on areas where future vegetation management actions will occur. A total of 12,600 acres were surveyed for noxious weeds under two separate contracts in the summer of 2023.
  • Contractors mapped 259 acres of noxious weeds. These 1,144 infestations will be prioritized for treatment in FY24.
  • In addition to the inventory, approximately 100 acres were treated under Interagency Agreement with the San Luis Valley BLM Field Office.
  • Treatments were prioritized along roadways leading to future vegetation management projects authorized under the Trail Gulch Vegetation Management Project Decision.

San Juan National Forest

  • Weed treatments focused on pretreating Rio Chama CFLR project areas.
  • In FY 2023, 96 miles of roadsides were treated for invasive species for a total of 1721 acres.
  • Aims to reduce the spread of invasives along designated transport routes for future timber and fuels treatments.
  • Outyear planning will treat invasives behind timber sales and mastication units within the Rio Chama CFLRP landscape.
  • Contract was awarded to a local, veteran-owned business

Invasive Musk Thistle

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