Weed Identification and Management
Invasive weeds are a major problem in California. They threaten ecosystem diversity, wildlife habitat, block river drainages, fuel wildfires, as well as hamper human recreation and agricultural endeavors. Invasive exotic weeds rank second only to development in destroying native plant and animal habitat.
County agricultural offices play an important role in preventing the introduction and establishment of new invasive weed species. Each county inspects seed and plant shipments that arrive in our respective counties to try and intercept and exclude exotic weeds.
What is a Noxious Weed?
A noxious weed is any species of plant that is, aggressive, intrusive, detrimental, or destructive to agriculture, parklands, forests, or native species environments. Noxious weeds are very competitive and difficult to control or eradicate.
Related Links
Attachments
- Don't Plant a Pest Brochure
This brochure gives gardeners alternatives to invasive garden plants. For easier viewing, zoom in to 100%, and use your scroll bars to view this file.
- Don't Plant a Tree Pest Brochure
This brochure gives examples of invasive tree species and some acceptable alternatives. For easier viewing, zoom in to 100%, and use your scroll bars to view this file.
Related Articles
Quick Links
- University of California - Integrated Pest Management (IPM) information
- Reporting Pest/Insect Problems
- Santa Clara Valley Beekeeper's Guild
- Cornell University's Guide to Natural Enemies
- Western IPM Center - projects and IPM data
- Santa Clara Valley Urban Runoff Pollution Prevention Program: Pest Fact Sheets
- California Exotic Pest Plant Council
- California Invasive Plant Council - identification and management
- CDFA Integrated Pest Control - eradication projects
- Calflora - information on wild California plants for conservation, education, and appreciation
- Encycloweedia -Noxious Weed Gallery & Data Sheets
- The Nature Conservancy Wildland Invasive Species