We provide site-specific forest management advice to private forest landowners, municipalities, and local government land managers. Aerial reconnaissance and ground surveys play a pivotal role by identifying agents-of-change as well as their effects on forest cover types.

Mountain pine beetle and spruce beetle are two of the most important insect pests in Wyoming's forests. Since the early 1990s, these native beetles have caused tree mortality over millions of acres of federal, state, and private forests in Wyoming.

Emerald ash borer (EAB) is a non-native invasive insect accidentally introduced to the Midwest which has since been spreading to other areas of the U.S. and Canada.

Satellite infestations of EAB include Boulder County, Colorado. EAB has not yet been detected in Wyoming, but considering the widespread urban planting of ash species infested by the emerald ash borer, it will have a substantial impact on community and rural forests someday soon.

Contact WSFD Forest Health Program

What are Wyoming's biggest forest health threats?

  • Forest structure
    • Lack of forest age class diversity
    • Too much dead wood
  • Fire
    • Altered fire return intervals
    • Four biggest fire seasons within last decade
    • Wildland-urban interface development
  • Logging industry
    • Four decades of decline
    • Economically difficult to remove wood
  • Lack of water
    • Low moisture & high temperature
    • Fire suppression & less harvesting = more trees
      • More trees = more water needed
  • Early 2000s drought led to more tree mortality
  • Competition alone is enough to lead to beetle attack
  • When combined with drought and disease, these factors can cause substantial tree mortality