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Viability of Puccinia horiana Teliospores Under Various Environmental Conditions

M. R. Bonde, C. L. Palmer, D. G. Luster, S. E. Nester, J. M. Revell, and D. K. Berner

March 2014


Puccinia horiana Henn. is a quarantine-significant fungal pathogen and causal agent of chrysanthemum white rust (CWR). In response to the possibility that the pathogen has become established in the United States, the objectives of this study were: (i) develop a better and more sensitive method to measure teliospore longevity; and (ii) determine if the pathogen is able to survive northeastern winters as viable teliospores.


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