UC ANR's charge is research and extension and we provide guidance about how to manage weeds using registered pesticides and by non-chemical methods. UC ANR includes information in its publications on how to effectively and safely use glyphosate where it is legal to do so as well as provide options for alternative chemical and non-chemical approaches for managing weeds.

UC ANR recognizes that the use of any pesticide carries risks, including in some cases the possibility of acute (immediate), chronic (long term) or carcinogenic effects, to those who may be exposed to them. This is true of any pesticide, which includes herbicides such as glyphosate.

UC ANR has not specifically addressed carcinogenicity or other health...

[Modified from the original article in the Summer 2018 issue of the Retail Nursery and Garden Center IPM News]

We all have our favorite products, whether it's laundry detergent, shampoo, or a pesticide you know works against the pests in your home or garden. But what happens when a company changes the ingredients in a product? Does it work, smell, or lather differently?  

You may visit a store looking for a pesticide product by name, not realizing that several popular pesticide brands have recently changed their active ingredients (the materials in pesticide products that actually...

Weeds are easiest to control when they are tiny emerging plants, reported Jeanette Marantos in a Los Angeles Times blog post. Marantos got tips on weed management from Cheryl Wilen, UC Cooperative Extension integrated pest management advisor in Southern California.

Wilen recommends home gardeners use a swivel (or hula) hoe to scrape the surface and decapitate weeds. “It's a bit of exercise,” she said, "but you can do it so quickly, it's not a problem.”

Another weed control strategy is a thick layer of mulch, with does double-duty by...