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 Puccinia horiana
BiostatusPresent in region - Exotic
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: White rust (Puccinia horiana) was first observed in New Zealand in April 1964 in a Palmerston
North nursery. In autumn 1965 it had become widespread throughout New Zealand. It caused
considerable damage to both outdoor and glasshouse crops of chrysanthemums grown for cut
flowers. As with P. clrrysanthemi, heavily infected stools should be destroyed. Sprays of zineb or
sulphur if applied at regular intervals throughout the season will give protection from the rust.
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