A recent inventory says 25 percent of whitebark pines in the Yellowstone ecosystem have rust. (trib.com)
The hope for whitebark pines in the face of the blister rust epidemic is that some trees are resistant and pass that resistance on to seedlings, which can be replanted in the wild, until genetic resistance to blister rust is well - distributed. (trib.com)
MPB mortality on whitebark pine in western Wyoming's Bridger - Teton National Forest. (realclimate.org)