01996naa a2200181 a 450000100080000000500110000800800410001910000200006024500490008026000060012930000180013549000080015352015400016165300090170165300100171065300300172077300640175016440001993-05-17               bl uuuu     u00u1 u    #d1 aCIVEROLO, E. L.  aCitrus bacterial canker diseaseban overview  c0  ap.390-395 v.1  vv.1  aCitrus bacterial canker disease (CBCD) affects most major citrus cultivars. Because of the widespread occurrence of CBCD in major citrus-growing areas of the potential introduction or reintroduction of the pathogen into areas where CBCD is not endemic or has been eradicated. At least three forms of CBCD are recognized. Since pathogenic specialization among CBCD-associated bacteria is not clearly understood, the causal agents of the Asiatic type of CBCD, cancrosis B in Argentina and Uruguay, and 'Mexican' lime cancrosis in Brazil are currently presumed to be caused by pathogenic variants of Xanthomonas pv. citri. Integrated systems of compatible cultural practices and phytosanitary measures consisting of resistant hosts, CBCD forecasting, removal of inoculum sources, phytosanitary measures, properly designed windbreak systems, timely application of protective copper-containing and/or antibiotic sprays, and quarantine and regulatory programs are generally the most effective means of CBCD management CBCD eradication programs have been variably effective, but are generally successful in protecting commercial citrus by restricting spread of the pathogen and distribution of the disease. Although apiphytic survival of X. c. pv. citri has been established, the epidemiological significance of the association of the pathogen with Citrus and non-citrus hosts is not completely undrstood. Early detection and identification of X. c. pv. citri have been significantly improved by adaptation of serological techniques, such ...  aCBCD  acitri  aXanthomonas campestris pv  tTokyo, Japan: International Society of Citricultural, l981.