Funds provided from the Oregon Department of Agriculture through a grant from the USDA Natural Resource Conservation Service

Welcome to the Phytophthora Online Course!

In this course, you will learn about Phytophthora so that you can reduce the risk of Phytophthora disease in your nursery. The course is divided into three modules:

Phytophthora root rot on rhododendron. Photo by C. Lewis.

It is best to go through each module in order. Each module should take 1-1.5 hours to complete, although you may start and stop as often as you like. There are practice questions at the end of each module so you can test yourself on what you have learned.  There are also links to further information.

The course is free, but there is an optional online exam which you may take for $100.

If you pass the test, you will receive a Certificate of Mastery on Phytophthora from Oregon State University Extended Campus.

Before you begin, please make sure you have the latest version of Adobe Flash installed. Click in the box below to download Adobe Flash. You may have to restart your computer to make it work properly.

To navigate the site, just click on the tab for Module 1.  If you have difficulty downloading or viewing the online course, please contact Oregon State University Ecampus at ecampus@oregonstate.edu. At the end, you will be able to take the test.

Good luck and have fun!