Plant Disease (2014) 98, p. 155 (Blomquist et al.)

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C.L. Blomquist, H.J. Scheck, J. Haynes, P.W. Woods and J. Bischoff (2014)
First published report of rust on white alder caused by Melampsoridium hiratsukanum in the United States
Plant Disease 98 (1), 155-155
Abstract: During 2010, white alder seedlings (Alnus rhombifolia) grown in California, U.S.A. were observed with symptoms of small, orange-yellow leaf pustules. The fungus Melampsoridium hiratsukanum was isolated from the diseased plants. The identification was based on morphological characteristics and DNA sequence analysis. Pathogenicity of the isolates was demonstrated by inoculation.
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Database assignments for author(s): Joseph F. Bischoff

Research topic(s) for pests/diseases/weeds:
surveys/sampling/distribution


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Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Melampsoridium hiratsukanum Alder (Alnus) U.S.A. (SW)