A leaf spot disease of Nymphaea alba in the Netherlands |
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| Authors: | H A van der AA |
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| Institution: | 1. Centraalbureau voor Schimmelcultures, P.O. Box 273, Baarn, the Netherlands
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| Abstract: | A destructive leaf spot disease was found onNymphaea alba in the lakes near Kortenhoef, Netherlands. After comparison of fresh material and herbarium specimens the causal agent is namedColletotrichum nymphaeae (Pass.) van der Aa, comb. nov. Synonymy, morphology and cultural characters of the fungus are described and discussed. Some remarks on the relationship with several host plants are given and the provisional conclusion is that the species is a widespread parasite, but that the destructive attack in the Kortenhoef region is probably caused by a combination of various factors. |
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