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Appendix E: Significant Citrus Diseases Other Than Huanglongbing
Pages 199-202

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From page 199...
... leafhoppers Stubborn Disease Arid citrus Avoiding infection in Roistacher, 1991; Unlikely to be a Spiroplasma citri regions, such as nurseries and young Timmer et al., problem in humid Transmitted by parts of plantings. 2003 areas where several species of California and environmental leafhoppers Arizona, North conditions for spread Africa, and the do not exist.
From page 200...
... identified Most important in Derrick and Replacement of affected trees Citrus Blight Unknown The Americas, Florida and Brazil; Timmer, 2000; with trees on tolerant Australia, South Transmissible by potential for Timmer and rootstocks; no known cure Africa root-piece and tree development Bhatia, 2003 for this disease. to-tree root grafts elsewhere uncertain.
From page 201...
... al., 2001; Graham et al., 2004 Not only important for Peres and Controlled primarily by Widespread in Citrus Black Spot Guignardia fresh fruit; causes Timmer, 2003; fungicide applications the humid to citricarpa significant fruit drop Timmer et al., (benzimidazoles, copper semi-arid citrus (Anamorph: as well. 2004; products, dithiocarbamates, growing areas in Phyllosticta or strobilurin)
From page 202...
... ; use of disease Mediterranean; areas. free nursery trees; avoiding Caribbean Basin; excessive nitrogen South Africa; fertilization and irrigation; South America application of foliar fungicides.


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