Prineville District Vegetation Treatments Using Herbicides on BLM Lands in Oregon Environmental Impact Statement

Prineville District - Common Weed Species Whitetop Dalmatian toadflax Medusahead rye

Russian knapweed Diffuse knapweed Yellow starthistle

Leafy spurge Puncture vine Canada thistle

Example of Weed Treatment Map

Integrated Vegetation Management Provide public information on washing vehicles to avoid transporting undesirable plant seeds onto public lands; sign boards; handouts at recreation sites Provide public information on washing vehicles to avoid transporting undesirable plant seeds onto public lands; sign boards; handouts at recreation sites Coordinate with 8 county weed boards and provide funding to 5 counties for weed control on BLM lands Coordinate with 8 county weed boards and provide funding to 5 counties for weed control on BLM lands Using biological control agents in coordination with Oregon Dept of Agriculture Using biological control agents in coordination with Oregon Dept of Agriculture

Integrated Vegetation Management Use a variety of approved chemicals for targeted species Use a variety of approved chemicals for targeted species Treatment priorities include high use recreation areas; acquired lands (abandoned agricultural fields); areas with high concentrations of noxious weeds; riparian areas; areas of whitetop Treatment priorities include high use recreation areas; acquired lands (abandoned agricultural fields); areas with high concentrations of noxious weeds; riparian areas; areas of whitetop Before treatments occur we contact adjacent landowners and neighbors. Many treatments are a result of landowners calling us Before treatments occur we contact adjacent landowners and neighbors. Many treatments are a result of landowners calling us

Manual & Mechanical Treatments Approximately 550 acres treated annually Approximately 550 acres treated annually 1350 acres are monitored for treatment effectiveness 1350 acres are monitored for treatment effectiveness Treatments are generally limited to areas with good access – high use recreation areas and along roads Treatments are generally limited to areas with good access – high use recreation areas and along roads Treatments in the river canyons are desirable but difficult and costly due to limited access Treatments in the river canyons are desirable but difficult and costly due to limited access

Biological Agents Establishment of food and cover crops to out compete weeds Establishment of food and cover crops to out compete weeds Introduction of toadflax capsule weevil to control Dalmatian toadflax in the John Day River corridor Introduction of toadflax capsule weevil to control Dalmatian toadflax in the John Day River corridor

Herbicide Treatments Acquired lands (abandoned agricultural fields) use chemicals for treating knapweeds and broadleaf weeds (county and BLM) Acquired lands (abandoned agricultural fields) use chemicals for treating knapweeds and broadleaf weeds (county and BLM)

Pesticide Use Permit Application Location of the area to be treated Location of the area to be treated Chemical to be applied, application rate and method of application Chemical to be applied, application rate and method of application Target species Target species Description of treatment site Description of treatment site Sensitive aspects and precautions/mitigations Sensitive aspects and precautions/mitigations Impacts to non-target species Impacts to non-target species

How Vegetation Treatment EIS Would Help Target-specific herbicides are more effective at treating the problem Target-specific herbicides are more effective at treating the problem Safer to use in sensitive riparian habitats Safer to use in sensitive riparian habitats Reduced residual off-site effects Reduced residual off-site effects More cost effective More cost effective

District Level Analysis Once the statewide Vegetation Treatment EIS is finalized, additional National Environmental Policy Act analysis would be required at the District or Resource Area level. Once the statewide Vegetation Treatment EIS is finalized, additional National Environmental Policy Act analysis would be required at the District or Resource Area level.