Puccinia pelargonii-zonalisSynonymsPuccinia granularis
BiostatusPresent in region - Exotic
Images (click to enlarge) Caption: uredinia and telia Owner: J.A. Cooper | Caption: uredinia on undersurface of leaf Owner: J.A. Cooper |
Article: Dingley, J.M. (1969). Records of plant diseases in New Zealand. New Zealand Department of Scientific and Industrial Research, Bulletin 192: 298 p. Wellington:. Notes: Cunningham (1923b) recorded this rust as Puccinia granularis Kalch and Cke. Doidge
(1926) showed that P. pelargonii-zonalis was morphologically distinct from this species,
and Cunningham (1931a) described this rust under P. pelargonii-zonalis. This species has
been introduced into New Zealand with the host. In the North Island it can be an important
disease of horticultural varieties of bedding zoned-leaved geraniums. Fortunately it occurs
only in late summer months after the plants have flowered. Infected plants can be pruned
back and sprayed with an organic fungicide.
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