Please see links on side panel for state and national resources. 

Bark Beetle Information

Recent fires, storms and drought conditions have contributed to tree stress in the Columbia River Gorge. A newly documented bark beetle, the California fivespined Ips (Ips paraconfusus) has impacted ponderosa pine tree health in a few areas of the gorge. 

Tree health:
WSU FS055E: Assessing Tree Health (pdf)

Tree Notes: Identifying Dead and Dying Conifers on Private Lands (external pdf) 

The California fivespined Ips (Ips paraconfusus):
WA DNR Tree Link: California fivespined Ips: A pine engraver beetle new to Washington State (external pdf)

ODF Forest Health Notes: California Fivespined Ips (external pdf-note insecticide recommendations do not apply in Washington State, contact your local extension office for more information)

Bark beetles and Willamette Valley Ponderosa Pine (OSU external link)

Tree Notes: Controlling Bark Beetles in Wood Residue and Firewood (pdf external link)

Arizona Cooperative Extension: Managing Slash to Minimize Colonization of Residual Trees by Ips and Other Bark Beetle Species Following Thinning in Southwestern Ponderosa Pine (external pdf-note insecticide recommendations do not apply in Washington State, contact your local extension office for more information)