Fire Blight of Shrubsand Trees in Idaho
BUL-1118
BY James Woodhall, Brad Stokes
November 18, 2025
Fire blight is a widespread, contagious, and destructive disease in both commercial and backyard shrubs and trees. Under ideal conditions, it spreads rapidly, wiping out an entire orchard in a single growing season. Learn the warning signs and symptoms and the intricacies of how to manage them in your Idaho grove in this handy two-page Idaho Green Thumb.