Jeffco invasive‑species team urges control of mountain pine beetle and noxious weeds

The Jefferson County invasive species management coordinator reported at the Conifer Area Council Feb. 20 that the county’s team has expanded from one to three full‑time specialists and that their work centers on noxious weed enforcement, pest surveys and public outreach.

The coordinator explained that the program’s jurisdiction covers non‑federal, unincorporated portions of the county and that the team enforces state and county noxious‑weed requirements and assists Colorado Parks and Wildlife (CPW) with surveys for aquatic nuisance species. Key priorities include mountain pine beetle detection and response, Japanese beetle monitoring, and priority weed lists that require eradication or control.

On mountain pine beetle, the coordinator described pitch tubes on trunks as a field sign and advised homeowners to inspect green trees for fresh infestation; control methods cited included chipping, masticating and targeted treatments for high‑value live trees. For noxious weeds, the coordinator referenced Colorado’s Priority A and B lists (eradication and control targets) and said the county maintains online resources to help residents develop integrated weed management plans.

Nut Graf: Jefferson County’s invasive‑species program has grown and is focused on detecting and reducing species that harm forests, waterways and agriculture; staff urged property owners to inspect trees for pine‑beetle signs and to consult county resources for weed control.

Additional details: The speaker noted recent detections of aquatic New Zealand mud snail in Bear Creek and reminded residents the county assists with vertebrate pest responses when pest species encroach on neighboring lands.

Ending: The coordinator directed residents to the county website for species identification, reporting procedures and for guidance on developing a property‑level weed management plan.