Specialty Crop Research Programs
WSU Puyallup Research & Extension Center2606 West Pioneer, Puyallup, WA, 98371-4998 USALast updated 9/25/2025
Academic Subjects
Plant Disease Research Programs
WSU Puyallup Research & Extension Center2606 West Pioneer, Puyallup, WA, 98371-4998 USALast updated 9/24/2025
Christmas Trees
Introduction Grower Resources Recent Research Projects Douglas-fir Twig Weevil Heat Treatments for Imported Seed Ongoing Research Publications and Reports Christmas tree foliar symptoms and stem canker
SOD Public Inquiry Guide
WSU Puyallup Research & Extension Center2606 West Pioneer, Puyallup, WA, 98371-4998 USALast updated 9/24/2025
New Pr hosts found
Five new Phytophthora ramorum hosts were detected during a rare plant survey in February on Marin County Municipal Water District property when unusual Arctostaphylos symptoms were identified. Samples submitted to […]