We are a Community of Weed Scientists and Weed Managers

Join us in fostering education, research, cooperation, and legislation related to Weed Science.

Annual Meeting

Save the Date! The 2025 WSWS Annual Meeting will be held March 10-13, 2025 at the Westin Seattle in Seattle, WA.


The latest newsletter is now posted and contains a variety of information about the Western Society of Weed Science.

Member Directory

Search for member contact info and view the member directory. Login to begin!

Our Publications

View our publications to see how members have been active in the Society.


Proceeding of the presentations at the Annual Meeting.


Published quarterly, and includes articles and calendar of events.


Research Progress Reports make research available with least possible delay.

Fact Sheets

Summarize topics related to herbicide resistance management.

Become a Member

Members of the Western Society of Weed Science are weed science professionals working throughout the Western United States and Canada.

Membership is open to anyone, including federal, state, and local employees, private company personnel, crop consultants, growers, or others interested in a wide variety of weed science related information.