Mycosphaerella mori. [Descriptions of Fungi and Bacteria].
Abstract A description is provided for Mycosphaerella mori. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Morus alba (white mulberry), M. nigra. (black mulberry). DISEASE: Leaf spot or 'Cylindrosporiosis' of mulberry. The visible symptoms are light brown to dark brown circular or irregular lesions with paler or whitish centres. Individual lesions measure 3-6 cm wide but they often coalesce to form blotches. Severe disease leads to loss of foliage. GEOGRAPHICAL DISTRIBUTION: Africa (Kenya, Libya, Zimbabwe, Malawi, South Africa, Tanzania, Uganda), Asia (India, Iraq, Malaysia, Nepal, Pakistan, Turkey, U.S.S.R. Armenia, Republic of Georgia, Tashkent); Australasia (Australia, New South Wales, Western Australia), Europe (Austria, Bulgaria, Cyprus, Denmark, France, Germany, Italy, U.K., Hungary, Malta, Yugoslavia), North America (U.S.A., Pennsylvania to Florida, Texas to West Virginia, Wisconsin); South America (Brazil, Manaus). TRANSMISSION: By conidia dispersed by rain splash. The fungus overwinters in young parts of branches (14, 265) and in debris lying on the ground.