Entomology and Plant Pathology Laboratories


The Department operates Entomology and Plant Pathology Laboratories, which seek to protect consumers by identifying exotic insects (and other invertebrates), invasive weeds and plant pathogens entering Los Angeles County through truck, ship, airfreight, and parcel delivery operations. The laboratories provide rapid and accurate identifications to support the Pest Detection and Pest Exclusion programs and offer identification and information services for Los Angeles County residents, schools, governmental agencies, growers, nursery and pest control operators. Overall, the laboratories process over 8,000 pest specimens submitted annually.

If you would like to submit samples for identification or analysis, please use the following forms: 

  1. Insect and other invertebrate specimen submission form
  2. Plant disease diagnosis/Plant & mushroom specimen submission form

Requests for pest identification are accepted for specimens originating in Los Angeles County only.

 

Most Wanted Poster
Click HERE for this poster in PDF format / (9.98 MB)


 

Field Guide Cover Page
Click on the left side image to open our "Field Guide to Target Insects in Pest Detection Programs"


 

INSECTS AND OTHER INVERTEBRATES
PESTS OF LANDSCAPES PESTS IN AGRICULTURAL SETTINGS
Bagrada bug (2 pages) African fig fly (2 pages)
Brown marmorated stink bug (1 page) Asian citrus psyllid (2 pages)
Bougainvillea looper (2 pages) Bagrada bug (2 pages)
Blue gum gall wasp (2 pages) Bougainvillea mealybug (1 page)
Chilli thrips (1 page) Brown marmorated stink bug (1 page)
Coniferous fiorinia scale (1 page) Chilli thrips (1 page)
Diaprepes root weevil (2 pages) Citrus leafminer (2 pages)
Erythrina twigborer (2 pages) Diaprepes root weevil (2 pages)
Ficus whitefly (2 pages) Guava fruit fly (1 page)
Goldspotted oak borer (2 pages) Harlequin bug (1 page)
Harrisia cactus mealybug (1 page) Japanese beetle (1 page)
Indian stick insect (1 page) Ligurian leafhopper (1 page)
Japanese beetle (1 page) Olive Bark Beetle (1 page)
Melaleuca psyllid (2 pages) Olive psyllid (2 pages)
Myoporum thrips (2 pages) Polyphagous shot hole borer (2 pages)
Olive psyllid (2 pages) Southern mole cricket (2 pages)
Polyphagous shot hole borer (2 pages) Spotted winged drosophila (1 page)
Red bug (1 page) Sweetpotato weevil (1 page)
St. Augustine Grass Planthopper (1 page) Striped fruit fly (1 page)
Southern mole cricket (2 pages)  
Surinam cockroach (1 page)  
Sweetpotato weevil (1 page)  
Tipu psyllid (2 pages)  
Weeping ficus thrips (1 page)  
Ficus leaf-rolling psyllid (2 pages)  
Bronze bug (2 pages)  
Olive Bark Beetle (1 page)  
   
PESTS OF STORED PRODUCTS, HOUSEHOLD GOODS AND STRUCTURES PESTS THAT STING AND BITE
(PESTS OF MEDICAL IMPORTANCE)
Formosan subterranean termite ( 2 pages) Arizona bark scorpion (2 pages)
Plaster bagworm (1 page) Brown widow spider (2 pages)
Pacific dampwood termite (2 pages)  
Western drywood termite (2 pages)  
Western subterranean termite (2 pages)  
PESTS OF HONEYBEE AQUATIC PESTS
Small hive beetle (1 page)  Channeled apple snail (1 page)

 

 

PLANT DISEASES
Pierce’s disease of grape and oleander leaf scorch
Sudden oak death

 

Plant Pathology Laboratory Brochure

Entomology Laboratory Brochure

Additional links:

University of California Statewide Integrated Pest Management Program
California Department of Food and Agriculture/The Entomology Laboratory