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Weed Science

The Weed Science program, based out of the University of California Cooperative Extension- Napa County office, holds a wealth of weed related information and is a must visit if you are looking to learn more about control tactics or identification. You can also find some important links below:

UC Weed Science Blog
  • Western FarmPress logo
    'Dry fallowing' ground may aid in weedy rice control

    From Western FarmPress The UC is suggesting practices that could help control spread of the wild rice type. Written by Todd Fitchette | Apr 20, 2021 California rice growers with troublesome...

    By Todd Fitchette
    Author
    By Gale Perez
    Posted by - Program Representative
  • Hare Barley
    The many faces of foxtails

    From roadsides in the city of Fresno to the oak woodlands in nearby Sequoia National Park, annual barleys and bromes are going to seed. In addition to a variety of other grasses, I often hear...

    By Rebecca Ozeran
    Author - Livestock and Natural Resources Advisor
Weed Resources
Photo of John A Roncoroni
John A Roncoroni
Title: Weed Science Farm Advisor, Emeritus
Specialty: Weed Control and Vegetation Management in Perennial Crops, Covercrops and Aquatic Weed Control
Address:
UC Cooperative Extension
1710 Soscol Avenue
Suite 4
Napa, CA 94559-1315
Phone: 707-253-4221
Email: jaroncoroni@ucanr.edu
Weed ID Tool

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UC Weed Science Twitter Feed