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Go to the NZFungi website for more indepth information on Puccinia pelargonii-zonalis. Puccinia pelargonii-zonalis

Synonyms

Puccinia granularis

Biostatus

Present 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.