P.O. Box 1961, West Sacramento, CA 95691     (831) 442-0883     (831) 442-2351

About Us


Founded in 1948, the California Weed Science Society (CWSS):

  • Provides professional education and information exchange on weed science
  • Provides a forum on public issues in weed science
  • Encourages research in weed science
  • Supports college students seeking a career in weed science
  • Facilitates teamwork with individuals, agencies, and organizations in weed science


Philip Munger, Ph.D

Bravin Kataela Agricultural Research

Vice President

Anil Shrestha, Ph.D

Professor of Weed Science

California State University, Fresno


William Patzoldt

Senior Agronomist

Blue River Technology

Past President

Brad Hanson, Ph.D

Cooperative Extension Weed Specialist

University of California, Davis

 Director – Finance

Dave Blodget

Aquatic Market Manager

Alligare LLC

Business and Office Managers (non-voting)

Jill Damskey & Celeste Elliott  

CWSS Business Office

P.O. Box 1961

West Sacramento, CA 95691

Phone: (831) 442-0883


Director – Steering

James Hruskoci, Ph.D

Senior Technical Service Scientist

Bayer Cropscience

Director – Non-conference Education

Whitney Brim-DeForest, Ph.D

UCCE, Sutter & Yuba Counties

Director – Sponsorship & Exhibitors

Eli Kersh

Field Operations Manager

Alligare, LLC

Director – Student Liaison

Tom Getts

Weed Ecology and Cropping Systems Advisor

UCCE Lassen County

Director – Public Relations

Kate Walker

Technical Service Representative




CWSS Board of Directors 2019-2020
Front row: Eli Kersh, Lynn Sosnoskie, Whitney Brim-DeForest; Back row: Tom Getts, Joe Vassios, Phil Munger, Dave Blodget, Gil del Rosario; Missing: Brad Hanson, Anil Shesthra