Citrus Huanglongbing: The Pathogen and Its Impact

Fig. 35. Current confirmed distribution of HLB in commercial citrus and residential properties in the State of Florida as of 19 June 2007. PCR confirmations of the disease have identified HLB in 15 counties in southern Florida. However, the map does not represent the much greater number of HLB visual thousands of additional detections that are not PCR confirmed. Map courtesy of USDA, Animal and Plant Health Inspection Service and Florida Department of Agriculture and Consumer Services.



Image from Plant Health Progress article:
Citrus Huanglongbing: The Pathogen and Its Impact