Several years ago, the UC Weed Science group produced a series of training videos. In the next few days, I'm going to share links to the videos. The first topic is principles of weed control. The videos are broken up into smaller parts, so they are easier to view.

Principles of Weed Control

• Video :: Part 1 :: Introduction, preventing weeds through sanitation (5:43)

From the UC Rice Blog (March 23, 2020)

Weeds are important pests of California rice systems, and weed management can account for roughly 17 percent of total operating costs, according to a UC cost of production study. 

I just got an e-mail from UC ANR (Agriculture & Natural Resources) about the two revised (weed science) publications. They're free!

Pest Notes: Plantains
Author: Maggie Reiter

UC IPM Pest Management Guidelines: Citrus
Weed section authors: Sonia Rios...

The introduction of a new crop into a landscape brings certain unknowns, including the risk of drift from neighboring crops. Hemp is a new, high-value commodity that is now being produced in many parts of California. The attached document includes photos and descriptions of herbicide damage symptoms on hemp. Plants were sprayed with herbicides that are widely used during the hemp growing season. Materials were selected that are likely to be sprayed on commodities planted near, or adjacent to, a hemp field. The intention is to provide a brief description of herbicide injury expected from specific herbicides or similar modes of action. The final page of the document is a table with the common registered uses of the materials included in...