Department of Entomology

The Asian citrus psyllid (Diaphorina citri) has been identified on every continent except Antarctica and Australia. It is known for spreading the bacterium Candidatus Liberibacter asiaticus, which causes citrus greening disease (also known as Huanglongbing).

Citrus greening is one of the most serious citrus diseases in the world. Infected trees produce immature (and unmarketable) fruits and die within five to 10 years. In the U.S., it was discovered in Florida in 1998 and is now found in virtually every citrus-producing state (Georgia, Florida, Puerto Rico, Virgin Islands, Alabama, California, South Carolina, and Texas).

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Sterile Insect Technique Shows Promise Against Asian Citrus Psyllid