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Washington State University
WSU Puyallup Ornamental Plant Pathology


The 2011 monitoring is completed. Check out the results pages for the latest information. Thanks to all the students and volunteers who helped out. A number of interesting projects have been done by students in 2012 using isolates collected in the 2011 stream survey. We have also found some possible new species of Phytophthora, Pythium, and Halophytophthora. The 2011 survey provided some baseline information about the oomycete (aka ‘water molds’) flora of western Washington streams with a variety of land uses.

We’re gearing up to start the 2011 monitoring study. Check out the sites page to see where baiting is being planned. These are subject to change until the weeks of Feb 21-25 and Feb 28-Mar 4, when we set up the sites and deploy the first bait leaves. This year we will have some salt water sites in addition to freshwater streams, so we will learn more about Phytophthora and Pythium species found in those environments. Check this page to see dates and times for setting up your monitoring site.

Save the date – Thursday July 29 from 10 – 2 pm at WSU Puyallup. We will look at our results from this years monitoring and start planning next years. Lunch will be provided. RSVP Marianne Elliott (


Contact: Gary Chastagner, 253-445-4528 | WSU Puyallup Research & Extension Center, 2606 West Pioneer, Puyallup, WA, 98371-4998 USA
Last updated January 2, 2013