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Attendees and speakers of Weed Science School 2023 gathered outside for a group photo

Register for Weed Science School 2026!

  • by Sam Romano

Registration is now open for Weed Science School 2026! 

Weed Science school is our biannual course covering the mechanisms behind how herbicides work. We focus in on weeds in California, and the herbicides approved for use within the state. This course is offered in lecture and demonstration formats, with content presented by some of the world's most respected weed scientists. 

Click here to register now!

Participants of Weed Day 2026 labeling types of weeds in a field.

Weed Day 2026

  • by Sam Romano

It's finally June, so it's time for another Weed Day!

Earn up to 5.0 hours of "Other" CEUs through the California Department of Pesticide Regulation by attending Weed Day 2026.

Weed Day is a showcase of the latest weed science research at the University of California. This year, we'll have demonstrations of a variety of weed control technologies during the morning field tour. After a buffet lunch and open discussion period, we'll have presentations in the afternoon for research projects that are either off-season or too far from campus for viewing.

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