The spruce beetle, which has significantly damaged the Rio Grande National Forest, is rapidly making inroads into the San Juan National Forest. The U.S. Forest Service held a meeting this week to kick ...
Annual aerial survey work last year, although curtailed because of the pandemic, remained sufficient to show that the spruce beetle remains the most damaging forest pest in Colorado for the ninth ...
Sep 19, 2021 Sep 19, 2021 Updated Oct 24, 2022 An epidemic is creeping into Interior Alaska, but it is not attacking people. It is killing forests filled with mature white spruce trees. The culprit is ...
An international research team demonstrates that the European spruce bark beetle (Ips typographus) uses volatile fungal metabolites of plant defense substances as important chemical signals in their ...
A spruce, with rust-red coloring that is the usual result of beetle infestation, is seen on July 7 on the Mount Healy Overlook Trail in the front country of Denali National Park and Preserve. The ...