The Asian citrus psyllid ACP is a pest that acts as a carrier or vector spreading "huanglongbing" HLB , a devastating disease of citrus trees. This bacterial disease is transmitted to healthy trees by the psyllid after it feeds on infected plant tissue. Zone 1: comprises uninfested counties where HLB has not been detected, there are no contiguous citrus growing regions, and it is not proximate to the border with Mexico. ZONE 2: comprises counties that are partially infested with ACP, HLB has not been detected, a geographical barrier exists between it and adjacent contiguous citrus growing regions i. ZONE 3: comprises counties that are partially infested with ACP, HLB has not been detected, a geographical barrier exists between it and adjacent contiguous citrus growing regions i. ZONE 4: comprises counties that are generally infested with ACP, HLB has not been detected, a geographical barrier exists between it and adjacent contiguous citrus growing regions i.
Quarantine Area Maps for Citrus Greening and Asian Citrus Psyllid | USDA
The addition of square miles square kilometers encompassing the cities of Corona and Norco and part of Chino followed the discovery of a dozen trees with citrus greening disease in Corona, The Press-Enterprise reported Thursday. A disease that could devastate citrus growers has reached San Bernardino County. A disease that destroys citrus has been detected in San Bernardino County, expanding an already large quarantine area aimed at keeping the malady from hitting groves in the southern San Joaquin Valley. The quarantine zone now covers 1, square miles 2, square kilometers in parts of Riverside, San Bernardino, Los Angeles and Orange counties. The quarantine forbids movement of fruit, citrus plants or foliage, but the fruit can be consumed on properties where it was grown. California farmers and scientists race to combat a citrus disease infecting trees.
New Requirements for Movement of Citrus into a Huanglongbing Quarantine Area
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. The best way to protect citrus trees from HLB is to stop the Asian citrus psyllid. Once a tree is infected with HLB, it will die.
Federal government websites always use a. The economic damage HLB has caused in Florida alone is alarming. Since the initial detection of HLB in Florida in , the disease has affected the vast majority of Florida's citrus-producing areas.