Pest Detection and Eradication

Deputy Agricultural Commissioner Margo Sanchez

This division is mandated to monitor agricultural and urban areas for harmful exotic pests in order to protect the local agricultural industry, environment, the public, and urban landscaping. This is largely accomplished through trapping, visual surveys, and the inspection of incoming nursery stock.  The division also provides field inspection services for seed exporters where inspection of the mother plants is required and provides pest identification services.

Quick Links:


Did you find a trap in your tree or yard?

PD&E Traps
Photo courtesy of Imperial County.

These traps help us monitor the county for invasive pests that could harm the agricultural industry or damage urban landscape plants. To request that a trap be removed or suggest a location for a trap please contact our office.


Asian Citrus Psyllid

The Asian citrus psyllid was found in Imperial County in 2008 and is of great concern to the future of the citrus in California.

Asian Citrus Psyllid
Photo courtesy of Michael Rogers of University of Florida.

It can transmit Huanglongbing (HLB), a.k.a. citrus greening, a disease that affects citrus trees where the fruit becomes unflavorful and the tree will eventually die. This disease has not been found in Imperial County, but could be introduced at any time.

We Need Your Help:

  • Please purchase your citrus trees and fruit locally. Bringing fruit or trees into the county may introduce the disease into the area.
  • Please cooperate with CDFA inspectors who ask to treat your citrus for Asian citrus psyllid or county inspectors that ask to place a trap at your home.
  • Please let us or CDFA know if you see the following symptoms on your trees by contacting our office immediately:
    • Yellowing of leaves on an individual limb or in one sector of a tree's canopy.
    • An asymmetrical pattern of blotchy yellowing or mottling of the leaf, with patches of green on one side of the leaf and yellow on the other side.
    • Fruit size becomes smaller, and the juice turns bitter.
    • Fruit might remain partially green, which is why the disease is also called citrus greening.
    • Fruit becomes lopsided, has dark aborted seeds, and tends to drop prematurely.
    • Chronically infected trees are sparsely foliated with small leaves that point upward, and the trees have extensive twig and limb dieback.
    • Eventually, the tree stops bearing fruit and dies. Fruit and tree health symptoms may not begin to appear for two or more years after the bacteria infect a tree.

Photos and information provided courtesy of the
Citrus Pest & Disease Prevention Program.


Bulk Citrus Commodities Movement (ACP/HLB Quarantine)

All growers, packers, processors, and transporters of bulk citrus commodities operating within Imperial County, please see the following letter regarding the compliance agreements required for the movement of bulk citrus.

Letter to Growers, Packers, Processors, and Transporters of Bulk Citrus. posted a new fact sheet on the ACP regional quarantine for bulk citrus movement for Zone 5, which includes San Diego and Imperial counties, and parts of San Bernardino and Riverside counties. Please check out the fact sheet by clicking here.

2018 Asian Citrus Psyllid (ACP) Regional Quarantine for Bulk Citrus Movement
FAQs for Growers, Packers/Processors, and Transporters


Bee Swarms and Mosquitoes

For information about bee swarms and mosquitoes, or how to report a bee nest or possible mosquito breeding habitat, please contact Imperial County Vector Control.