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Stemphylium lycopersici . [Descriptions of Fungi and Bacteria].

1975; CAB International Publishing; Linguagem: Inglês

10.1079/dfb/20056400471

2514-5606

CAB International UK, M. B. Ellis, I. A. S. Gibson,

Plant Pathogens and Resistance

Abstract A description is provided for Stemphylium lycopersici . Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Lycopersicon most commonly but also found on Allium, Carthamus, Gladiolus and other plants. DISEASE: Stemphylium leaf blight of tomato, petal blight of carnation. The fungus forms necrotic lesions, closely resembling those of grey leaf spot ( S. solani ), on foliage and floral parts in which conidia are borne in later stages of infection. Relatively severe attacks have been recorded on chrysanthemum in Canada (41, 309; 46, 3384) and tomato in Israel (53, 2683). GEOGRAPHICAL DISTRIBUTION: Asia (Arabia, Israel, Malaysia (W. and Sarawak), India, Hong Kong, Yemen); Africa (Kenya); N. America (USA, Canada); S. America (Venezuela); Central America and W. Indies (Cuba); Australasia and Oceania (Tahiti). TRANSMISSION: By air-borne conidia. Conidia have been shown to survive in dried plant refuse for 4 months and in dried agar culture for 8 months (Hannon & Weber, 1955).