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The writers have attempted to review the available literature on the subject and to organize it in an orderly fashion. The name, symptomatology, host range, and geographic distribution are given for each virus disease. Where it was possible illustrations of each disorder have also been included. This bulletin addresses the following apple virus diseases: apple mosaic, flat limb, rubbery wood, stem pitting, spy 227 apple reaction, dwarf fruit and decline, chat fruit, chlorotic leaf spot, leaf pucker, dapple apple, false sting and green crinkle, green mottle, ring spot, star cracking, scar skin, rough skin, apple proliferation, rosette
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Maine Agricultural Experiment Station
Apple, diseases, virus diseases of plants
McCrum, R.C., J.G. Barrat, M.T. Hilborn, and A.E. Rich. 1960. An illustrated review of apple virus diseases. Maine Agricultural Experiment Station Bulletin 595.