Advisories, Quarantines or Proclamations of Emergency

Agriculture/Weights & Measures works with the California Department of Food & Agriculture when a quarantine is necessary. The CDFA is the governing agency in declaring quarantines, and it is AWM that will enforce and circulate the information to residents and businesses in the quarantine area(s).

Help protect our community’s produce
We need your help. San Bernardino County residents are asked not to move backyard produce!…
A closeup of a fruit fly on a price of fruit and another photo of an orange cut open displaying white maggots inside.
Fruit removal set as part of the Oriental fruit fly eradication program
The California Department of Food and Agriculture (CDFA) is preparing to begin large-scale fruit removal…
A large close up photo of an Oriental fruit fly on a white cloth gloved fingertip.
Redlands & Yucaipa under fruit fly quarantine
Portions of San Bernardino, Riverside and Sacramento counties have been placed under quarantine for the…
CDFA announces new ACP quarantine area in Fontana, holds public meeting
The California Department of Food and Agriculture (CDFA) confirmed the presence of the insect, Asian…
A satellite map of the Fontana, California and new ACP quarantine boundary highlighted in magenta. An arrow points to the magenta boundary line with a dark grey box with an information icon, round circle with "i" and the words new boundary in magenta.
Bird Flu detected in non-commercial backyard flock (non-poultry) in Sacramento County
The United States Department of Agriculture’s (USDA) Animal and Plant Health Inspection Service (APHIS) has…
backyard chickens are seen in a yard against a chain link fence.
ACP Proclamation of Emergency Issued for Areas of Highland, Redlands & Mentone
Asian Citrus Psyllid were collected in the cities and communities of Mentone and Redlands in…
A satellite view of the affected areas for Asian Citrus Psyllid with an identified boundary in blue. Bearby commercial growers are identified in solid yellow. The legend below identifies the treatment areas of Highland, Redlands and Mentone.
Medfly Quarantine Lifted in Upland, Ontario, Montclair and Rancho Cucamonga
Effective June 19, 2022, the Mediterranean Fruit Fly (MedFly) quarantine in San Bernardino and Los…
A med fly is seen on the lower portion of a lemon from a lemon tree with the words Medfly Quarantine Lifted in Upland, Montclair, Ontario & Rancho Cucamonga effective June 19, 2022. Photo Credit: Mourad Louadfel.,
Medfly Quarantine Issued
Medfly Quarantine Declared in Cities of Upland, Ontario, Montclair and Rancho Cucamonga October 2021, San Bernardino…
The female Mediterranean fruit fly, shown here on a coffee fruit.
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Pests causing harm to our agriculture

The female Mediterranean fruit fly, shown here on a coffee fruit.
Photo Credit: Scott Bauer, USDA Agricultural Research Service

The Mediterranean fruit fly is a short, squat fly about 1/4 inch in length. It has a blackish thorax marked with silver; a tan abdomen with darker stripes extending across the abdomen; and clear wings with two light brown bands across the wing, another along the distal front edge, and gray flecks scattered near the base. The immature stages are superficially similar to those of other exotic fruit flies. Eggs are white, very small, elongate, and somewhat banana-shaped. Larvae are white, legless, and somewhat carrot-shaped. The pupa is contained inside an elongate oval, shiny brown, hard puparium.

Photo Credit: California Department of Food & Agriculture

The adult oriental fruit fly is somewhat larger than a housefly, about 8 mm in length. The body color is variable but generally bright yellow with a dark “T” shaped marking on the abdomen. The wings are clear. The female has a pointed slender ovipositor to deposit eggs under the skin of host fruit. Eggs are minute cylinders laid in batches. The maggots (larvae) are creamy-white, legless, and may attain a length of 10 mm inside host fruit.

A closeup of the Asian Citrus Psyllid that causes Huanglongbing disease in citrus.
Photo Credit:

A tiny insect no bigger than a grain of rice may go unnoticed on your citrus trees, but it could have devastating consequences for California citrus if not stopped. The Asian citrus psyllid feeds on citrus leaves and stems, and can infect citrus trees with a bacteria that causes a serious plant disease called Huanglongbing, also known as HLB or citrus greening disease. While not harmful to humans, the disease kills citrus trees and has no cure.

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