<i>Erwinia cypripedii</i> . [Descriptions of Fungi and Bacteria].

TL;DRAbstract

Abstract A description is provided for Erwinia cypripedii . Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Aerides japonicum, Cypripedium godefroye, C. haynaldium, C. laevigatum, C. philippinense, Phalaenopsis amabilis, P. aphrodite and P. schilleriana . DISEASE: Bacterial brown rot of orchids. The disease, which usually attacks orchids with thick, fleshy leaves, starts as a small water-soaked lesion which enlarges to become a brown, slightly sunken greasy-looking area. The lesion soon becomes visible on the other side of the leaf, and becomes a dark chestnut brown. If the disease is unchecked it may pass down into the stem and reach the growing point, destroying the plant. GEOGRAPHICAL DISTRIBUTION: Japan, Taiwan, USA. TRANSMISSION: No specific studies but observation suggests that the bacteria are splashed on to the leaves in watering or rainfall. When overhead watering is stopped the spread of the dise

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