Abstract

Abstract A description is provided for Ramularia astragali . Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOST: Astragalus carolinianus . DISEASE: Leaf spot of A. carolinianus . The lesions are mainly circular, but occasionally fuse and become irregular. Tufts of conidiophores emerging through the stomata give the leaf spots a frosted appearance. Sporulation is known to occur in July and August. GEOGRAPHICAL DISTRIBUTION: North America (Canada, USA: Dakota). TRANSMISSION: By wind dispersal of airborne conidia.

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