Citrus Canker: The Pathogen and Its Impact

Fig. 49. Aerial map of residential area in Hillsborough County subjected to citrus canker eradication. Circles represent overlapping areas whose center is an infected citrus tree from which a 1900-ft radius is set. Following tree removal the area remained free of citrus canker for two years and has been released from quarantine.



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