PPO > Sudden Oak Death Research and Education Program > Sudden Oak Death > Information for Nursery Professionals > Best Management Practices Workshop for Nurseries: Steam Sanitation and Disease Identification

Best Management Practices Workshop for Nurseries: Steam Sanitation and Disease Identification

Follow the links for pdf versions of the workshop presentations:

Agenda

Time	Topics	Presenters
9:00 – 9:30	Registration, introduction
Session 1: 9:30 – 11:15 100 min, 2 credits	Steam sanitation of soil, pots, and media Sanitation for nurseries (pdf) (25 min). Overview of topics, case studies, data. Diseases and pests (pdf) (20 min) and Weeds (pdf) (30 min) that can be treated. Heat tolerances of various pests, pathogens, and weeds. Heat treatment techniques, equipment, and costs (pdf) (25 min).	Gary Chastagner Tim Miller Marianne Elliott
11:15 – 11:30 (15 min)	Break
Session 2: 11:30 – 12:30 (60 min, 1 credit)	Steam sanitation demonstrations Media pile (30 min) – how to apply steam using two methods (tarp and perforated pipe) Pots (30 min) – setups for pot steaming (pot pile with tarp, steam chamber in truck), effects of steaming on various pot materials	Gary Chastagner Marianne Elliott
12:30 – 1:15 Lunch (on your own)
Session 3: 1:15 – 2:15 (60 min, 1 credit)	Phytophthora disease identification and Hands On Demonstrations Recognizing Phytophthora symptoms on foliage and different hosts (pdf) (30 min). Using test strips (30 min). Participants will examine potted plants for symptoms and test for Phytophthora using Agdia immunostrips.	Marianne Elliott

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