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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
  • Weed Day 2018
    ANNOUNCEMENT :: UC Weed Science 2023 events

    Mark your calendar... Weed Day 2023June 21, 2023 (Wed.) UC Davis Weed Science School 2023 Sept. 19-21, 2023 (Tue.-Thu.) UC Davis   More information on these events to come.  

    By Gale Perez
    Author - Public Education Specialist
  • Contra Costa County Public Works logo
    Job announcement :: Vegetation Management Technician

    The Public Works Department is recruiting to fill positions of Vegetation Management Technician. The Department is seeking qualified candidates who are enthusiastic, self-motivated, safety oriented...

    By Gale Perez
    Posted by - Public Education Specialist
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
UC Cooperative Extension
1710 Soscol Avenue
Suite 4
Napa, CA 94559-1315
Phone: 707-253-4221
Email: jaroncoroni@ucanr.edu

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