Help the California Department of Fish and Wildlife celebrate their first annual California Invasive Species Action Week, Aug. 2 – 10, and protect California's diverse landscapes. Hundreds of invasive plants and animals have already established themselves in California's landscapes and populations are quickly expanding each year.

Invasive species are organisms that are not native to an environment. Once they are introduced, they establish themselves quickly and spread - causing harm to the environment. Invasive species threaten our waters, native plants, animals, agriculture, economy and popular recreational sites.

Prevention is the most effective...