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How to Manage Pests
Exotic and Invasive Pests
Exotic and invasive pests and diseases that threaten California's
agricultural, urban, or natural areas
Links to articles, fact sheets, and other
information prepared by UC IPM or through its research program
What are exotic and invasive species?
Exotic species are organisms (plants, animals, and microorganisms) that
are not native to a particular region. The impact of exotic pests
varies considerably depending on the species and the area being invaded.
Some exotic species have been intentionally introduced
to California, while others come in accidentally. Some species are able
to rapidly colonize an area and become serious pests, often because they
are no longer under control of predators or diseases that limited their
numbers in their native habitat. Species that rapidly colonize an area are
often called exotic invasives.
Once established, invasive species are extremely difficult to eradicate
and can cause not only ecological disruption, but economic problems as well. Everyone
has a part to play to keep exotic and invasive species from coming into California
and spreading throughout the state. >> Read more
Insects and other arthropods |
- Asian citrus psyllid and citrus greening disease
- Asian longhorned beetle
- Avocado lace bug
- Citrus leafminer
- Diaprepes root weevil (citrus root weevil)
- Eucalyptus pests
- Giant whitefly
- Gilli mealybug
- Glassy-winged sharpshooter
- Hackberry woolly aphid
- Light brown apple moth
- Mediterranean fruit fly
- Olive fruit fly
- Redhaired bark beetle
- Red imported fire ant
- Spotted gum psyllid
- Tomato psyllid
- Vine mealybug
- Citrus greening disease and Asian citrus psyllid
- Cucurbit yellow stunting disorder
- Pitch canker
- Sudden oak death
- Tomato yellow leaf curl
Weeds and other unwanted plants |
- Giant reed
- Invasive plants
- Crustaceans, mollusks, worms, and fish
- Sabellid polychaete (a fan worm)
- Exotic Newcastle disease (END)
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