Citrus Canker: The Pathogen and Its Impact

Fig. 39. Map of a portion of residential Miami-Dade County, Florida. Blue dots depict examples of two individual citrus canker-infected trees located in two residential properties. Blue circles surrounding the blue dots indicate areas within 1900-ft radii of these two infected trees. Red dots indicated all known citrus canker-infected trees within the mapped area. Red lines depict the boundary defined by overlapping circles of 1900-ft radii that define the potential area exposed to citrus canker and within which all citrus canker-infected and non-infected trees are removed in an attempt to eradicate the disease.



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