01403naa a2200133 a 450000100080000000500110000800800410001902200140006010000180007424500800009226000090017252010300018177300580121116362102001-11-12       2001    bl uuuu     u00u1 u    #d  a0009-75941 aGRAHAM, J. H.  aVarietal susceptibility to citrus cankerbObservations from southern Brazil  c2001  aThe Florida Department of Agriculture and Consumer Services' Division of Plant Industry (DPI) and the USDA Animal Plant Health Inspection Service (APHIS) continue to fight the exotic bacterial fruit and leaf spotting disease Asiatic citrus canker, caused by the bacterium, Xanthomonas anoxopodis pv. citri. The disease affects all major varieties, especially grapefruit and early oranges (Hamlin and Navels) that comprise more than 50 percent of the trees in Florida. Although the disease in still mostly present in two metropolitan areas (Miami and Palmetto),canker has repeatedly broken out in groves in south central Florida close to Miami. When a grove or residential property is confirmed positive, trees "exposed"to the disease within 1,900 feet, as well as the infected trees, are eradicated to prevent further bacterial spread by windblown rain. Citrus companies are under compliance agreements to decontaminate personnel, machinery and harvesting equipment to prevent further movement of disease within the industry.  tCitrus Industry, Bartow, FLgv.82, n.6, p.15-20, 2001