About Weeds

The California Native Plant Society (CNPS) is a non-profit organization dedicated to the understanding and appreciation of California's native plants and to conserve them and their natural habitats through education, science, advocacy, horticulture and land stewardship.

California Native Plant Society

The California Poison Control System (CPCS) is the statewide provider of immediate, free and expert treatment advice and assistance over the telephone in case of exposure to poisonous, hazardous or toxic substances. Call us toll-free, 24 hours a day, 7 days a week, 365 days a year.

California Poison Control System (CPCS)

Across California, invasive plants damage wildlands. Invasive plants displace native plants and wildlife, increase wildfire and flood danger, consume valuable water, degrade recreational opportunities, and destroy productive range and timber lands. Cal-IPC works with land managers, researchers, concerned citizens, and policy makers to protect the state from invasive plants. The Department works closely with Cal-IPC eradicating targeted species and updating its website "CalWeedMapper".

 Cal-IPS

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Established in 1979, the University of California Statewide Integrated Pest Management Program (UC IPM) develops and promotes the use of integrated, ecologically sound pest management programs in California. This website is very useful with pest pictures, crop-specific pests, pest biology, and control information.

University of California Statewide Integrated Pest Management Program (UC IPM)