A new leaf blight disease of Trifolium dasyurum caused by Botrytis fabae
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A new disease was observed on Trifolium dasyurum, with symptoms beginning as a halo spot and developing into a leaf blight. The causal organism was identified by microscopy and DNA sequence studies as Botrytis fabae. This strain of B. fabae was also demonstrated to cause disease on foliage of a range of pulse crops, including Vicia faba, Pisum sativum, and Lens culinaris. This study demonstrates the potential of this strain of B. fabae to not only pose a significant threat to T. dasyurum but also to pulses grown in rotation with T. dasyurum that are susceptible to this strain of B. fabae.
KeywordsTrifolium dasyurum Botrytis fabae Botrytis cinerea Leaf blight
We thank the Department of Agriculture and Food Western Australia and the Schools of Plant Biology and Earth and Geographical Sciences at The University of Western Australia for funding this research.
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