Mycosphaerella populorum. [Descriptions of Fungi and Bacteria].
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Abstract A description is provided for Mycosphaerella populorum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Populus spp. DISEASE: Septoria canker, leaf spot disease. GEOGRAPHICAL DISTRIBUTION: North America: USA (east and central states). South America: Argentina (CMI Distribution Map 540, 1981). TRANSMISSION: By windborne conidia and ascospores.