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The CSU Extension in Gilpin County helps mountain residents improve their quality of life by offering a website, classes and programs that provide unbiased, research-based information on forestry, wildfire, wildlife, mountain gardening, noxious weeds and many other issues. Through our 4-H programs, we help youth develop life skills through leadership opportunities.

What to do with infested trees   arrow

What to do with infested trees

How to treat trees depends on the time of year. The best time to look for new infestations and to treat trees is in late September, October and November! You have many more options at that time. Snow is also less of a factor than it is in the spring.

Trees infested with pine beetle cannot be saved. Cut tree down, remove branches and then:

Treatment options from Sept 30- May 15

  • Solar Treatment for Mountain Pine Beetle
  • Cut to firewood length, split, and burn by April or May, along with more seasoned wood
  • Remove bark (with chain saw, Log Wizard, or draw knife)
  • Chip the entire tree.
  • Public Works accepts infected trees. Contact Public Works at 303-582-5004 to make an appointment to drop off infected trees and slash.

Treatment options from May 15 – July 1

  • Chip the entire tree.
  • Public Works accepts infected trees. Contact Public Works at 303-582-5004 to make an appointment to drop off infected trees and slash.
  • Remove bark with a chain saw or log wizard

Extension Office is Open Under Strict Guidelines

Visits are by appointment only.