Northern San Joaquin Valley Weed Management Area

Project Highlights:

  • Invasive plant control along Stanislaus River & San Joaquin River
    • Several varieties of weeds can be found along a ten mile stretch of the lower Stanislaus River from the City of Ripon to its confluence with the San Joaquin River. Several species are being controlled in this area tree including tree of heaven, arundo, edible Fig, himalayan blackberry, perennial pepperweed and yellow starthistle. Chemical control is used to reduce the weed populations. Goals are to protect mature and newly restored riparian habitat for multiple endangered and threatened species. Project partners: California State Parks, United States Fish & Wildlife Service, United States Army Corps of Engineers and private land owners.
  • Turlock Lake State Recreation Area Campground Project
    • In the Turlock Lake State Recreation Area Campground, large populations if himalayan blackberry and edible fig can be found. These weeds over populate riparian areas, roadsides, and disturbed areas. They crowd out native vegetation and endanger wildlife habitat. The himalayan blackberry is removed manually and edible fig is treated with chemicals for eradication. Strategic goals are to protect the Central Valley riparian community. The main project partner for this endeavor is California State Parks.
General contact:
  • Diana Waller, (209) 491-9320 x132, and
  • Jarrod Martin, (209) 491-9320 x100,
Meetings: Quarterly at the Stanislaus County Agriculture Department
Formed: 1999

Contact Northern San Joaquin Valley Weed Management Area

Diana Waller, USDA-NRCS and Jarrod Martin, East Stanislaus Resource Conservation District
Stanislaus County Agriculture Department
3800 Cornucopia Way, Suite B
Modesto, California  95358
Phone: (209) 525-4730


Service Area

Services provided in:
  • Merced County, California
  • San Joaquin County, California
  • Stanislaus County, California

To request additions or corrections to this entry email the Administrator