USDA. Agricultural Research Service.

New clues to how the bacteria associated with citrus greening infect the only insect that carries them could lead to a way to block the microbes' spread from tree to tree, according to a study in Infection and Immunity by Agricultural Research Service (ARS) and Boyce Thompson Institute (BTI) scientists.

Arizona Department of Agriculture.

University of California. Agriculture and Natural Resources.

Provides information to both growers and home gardeners, in two distinct sub-sites -- to get the basics on the insect and the disease it can vector, how to inspect your trees, how to treat your tree if you find ACP, critical things to do to help contain the insect population and deal with Huanglongbing (HLB), as well as additional information more specific to California.

University of California. Agriculture and Natural Resources.

USDA. Animal and Plant Health Inspection Service.

Select layer to view quarantine by species (Asian citrus psyllid, citrus black spot, citrus canker,  citrus greening, sweet orange scab).
See related resource: Data Visualization Tools to explore plant and animal health management data and interactive story maps

USDA. APHIS. Plant Protection and Quarantine.

Provides comprehensive Asian citrus pysllid and citrus greening information including: what to look for, how to prevent this disease and how it is treated. Also provides image gallery and information how to report signs of citrus disease. And provides control information including: current status, regulatory information, Huanglongbing multi-agency coordination, potentially actionable suspect sample policy, and spread the word (videos).

University of Florida. IFAS Extension. Integrated Pest Management.

University of California - Riverside. Applied Biological Control Research.

U.S. Department of Agriculture.

USDA established a unified emergency response framework to address Huanglongbing (HLB), a serious disease of citrus that affects several U.S. states and territories. This framework will allow USDA and its many partners to better coordinate HLB resources, share information and develop operational strategies to maximize effectiveness.

USDA. APHIS. PPQ. CPHST. Identification Technology Program.

The Asian citrus psyllid (Diaphorina citri), also called the Asiatic citrus psyllid or ACP, is a notorious pest that prefers citrus and closely related plants for hosts, particularly species within the genera Citrus, Citropsis, and Murraya. Although the spread of this vector is a concern, with vigilant scouting for obvious symptoms, and close inspections to detect the pests themselves, we can work together to be proactive in protecting our citrus. Here IDTools presents a set of IDaids that support the detection and identification of the Asian citrus psyllid. Visit Search IDaids to find identification resources for many more plant pests.

USDA. ARS. Tellus.

Agricultural Research Service (ARS) researchers in Florida have developed “attract-and-kill” traps to control Asian citrus psyllids in the suburbs where citrus trees are popular landscape plantings.

California Department of Food and Agriculture. Citrus Pest and Disease Prevention Program.

The Citrus Pest & Disease Prevention Program is an initiative funded by California citrus growers and administered by the California Department of Food and Agriculture dedicated to combating serious pests and diseases that threaten the state's citrus trees.

USDA. APHIS. Cooperative Agricultural Pest Survey. National Agricultural Pest Information System.