Abstract
Severe brown necrotic spots of leaves, yellowing and blight of outer leaves, twisting and curling of new leaves, stem rot, and plant death of Welsh onion (Allium fistulosum) occurred in Taiwan. Isolates from the diseased plants were identified as Colletotrichium siamense based on morphology and molecular characteristics. The isolates reproduced the symptoms on Welsh onion by inoculations and were re-isolated from the diseased tissue. This is the first report of C. siamense causing anthracnose-twister disease on Welsh onion in Taiwan.
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Yuan, CY., Huang, CW., Lin, CP. et al. First report of anthracnose-twister disease of welsh onion caused by Colletotrichum siamense in Taiwan. J Gen Plant Pathol 89, 288–291 (2023). https://doi.org/10.1007/s10327-023-01132-6
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DOI: https://doi.org/10.1007/s10327-023-01132-6