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Plant Pest Diagnostics Center - Entomology Laboratory

Insect & Invertebrate Pest Sheets

Prepared by Drs. Natalia von Ellenrieder & Rosser Garrison,
except those marked * by John Sorensen, ** by Marc Epstein & Megan O'Donnell, *** by Peter Kerr, †† by Martin Hauser, † by Dr. Gevork Arakelian (Senior Biologist, Los Angeles County Agricultural Commissioners Office - more pest sheets), and ††† by UC Riverside Center for Invasive Species Research
Following are sheets on various insect and invertebrate pests within California or exotic to California. Some are available in Spanish. (PDF format)

NOTE: The insect and invertebrate sheets below are for information only, to aid in the recognition of these species and to provide some information on their general biology. The official list of PEST PROFILES (Target Pests and Disease Information), maintained by the Pest Detection/Emergency Projects branch, includes the up-date-information on significant pests and diseases that are part of the Department's detection and eradication programs.

Insecta: Coleoptera (beetles)
Insecta: Diptera (flies)
Insecta: Hemiptera: Auchenorrhyncha (leafhoppers, planthoppers)
Insecta: Hemiptera: Heteroptera (true bugs)
Insecta: Hemiptera: Sternorrhyncha (scales, mealybugs, psyllids, aphids, whiteflies)
Insecta: Hymenoptera (ants, bees, wasps)
Insecta: Isoptera (termites)
Insecta: Lepidoptera (moths)
Insecta: Orthoptera (grasshoppers, crickets)
Insecta: Phasmida (stick insects, walking sticks)
Insecta: Psocoptera (bark lice)
Insecta: Thysanoptera (thrips)
Arachnida (spiders, mites)
Mollusca (snails, slugs)

Beneficials commonly encountered