The Weed Science Program area of focus includes agricultural and invasive weed control (chemical, mechanical, cultural, and biological control), weed ecology, weed monitoring and forecasting, vegetation restoration, and integrated control strategies.
Pest Management of Small Grains - Weeds is a section of the Small Grain Production Manual that specifically addresses weeds and weed control.
Encycloweedia is sponsored by the California Department of Food and Agriculture and has a photo gallery and data sheets for identification and management of noxious weeds found in California.
Western Society of Weed Science coordinates efforts in weed management among various states and agencies, fosters and encourages education and research in weed science, and supports solutions to weed problems. Their website has a link to on-line lessons about herbicides.
UC Weed Science Blog
Root-inhibiting herbicides (like pendimethalin or trifluralin) are soil-applied and pre-plant incorporated as a standard practice for conventional processing tomatoes in the Sacramento Valley. Earlier this year, I visited a young processing tomato field...
Richard Smith is the University of California Cooperative Extension Monterey County Vegetable Crop Production and Weed Science Farm Advisor. He also covers Santa Cruz and San Benito counties. Weeds are an important host of Impatiens Necrotic...