Madrone Leaf Blight Distribution in 2011

a young man wearing jean shorts and a t-shirt stands next to a madrone with one of its branches on the ground

British Columbia

Vancouver Island and NW Washington State

Washington

Puget Sound region

Further results were available for parts of Oregon and California, but the sands of time have disposed of them.

WSU Puyallup Research & Extension Center
2606 West Pioneer, Puyallup, WA, 98371-4998 USA
Last updated 9/24/2025