The orange pitch tube and frass at the base indicate red turpentine beetle attacked this fire-damaged tree near Sisters, Oregon. USDA Forest Service photo by Doug Westlind.
In ponderosa pine forests of western North America, wildfires are becoming more frequent and affecting larger areas. Prescribed fire is increasingly used to reduce fuels and mitigate potential wildfire severity. Both fire types damage trees that initially survive their burn injuries but eventually die.
If land managers know which damaged trees are likely to die within the next few years, those can be culled during postfire logging. Removing them sooner than later minimizes damage to new tree seedlings and other regenerated vegetation and maximizes the commercial value of recovered timber. Station scientists Doug Westlind and Rick Kelsey developed and tested models for predicting delayed tree mortality that can be used in postfire planning and management.
This research will be useful to forest planners, land managers, and scientists.