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<p>Chilli (<i>Capsicum annuum</i> L.) is a major cash crop of great economic significance worldwide. Chilli production remarkably impacted by anthracnose disease, resulting in an annual yield loss of about 50% due to <i>Colletotrichum</i> spp. During the field survey, symptoms of anthracnose disease were observed on chilli fruits, with dark lesions displaying concentric rings, accompanied by grey and black spots and mass. Anthracnose disease causing pathogen was isolated and cultured on Potato Dextrose Agar medium. Culture grown samples were morphologically analysed by light microscopy as well as scanning electron microscopy. Conidia were single-celled; cylindrical in shape, with round and acute ends has 18.11 ± 1.23&#xa0;μm mean length and 8.22 ± 0.25&#xa0;μm width. Based on the morphological and molecular sequencing of ITS region, the associated pathogen was identified as <i>Colletotrichum eriobotryae.</i> Koch’s postulates were proved confirming <i>C. eriobotryae</i> as the causal organism of anthracnose disease in chilli.</p>

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First report of anthracnose caused by Colletotrichum eriobotryae on chilli (Capsicum annuum L.) in Karnataka, India

  • 期刊论文

  • 发表日期：

    2026年5月6日

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  • Devarajan Thangadurai,
  • Simran Panigatti,
  • Jeyabalan Sangeetha,
  • T. S.S.K. Patro

摘要

Chilli (Capsicum annuum L.) is a major cash crop of great economic significance worldwide. Chilli production remarkably impacted by anthracnose disease, resulting in an annual yield loss of about 50% due to Colletotrichum spp. During the field survey, symptoms of anthracnose disease were observed on chilli fruits, with dark lesions displaying concentric rings, accompanied by grey and black spots and mass. Anthracnose disease causing pathogen was isolated and cultured on Potato Dextrose Agar medium. Culture grown samples were morphologically analysed by light microscopy as well as scanning electron microscopy. Conidia were single-celled; cylindrical in shape, with round and acute ends has 18.11 ± 1.23 μm mean length and 8.22 ± 0.25 μm width. Based on the morphological and molecular sequencing of ITS region, the associated pathogen was identified as Colletotrichum eriobotryae. Koch’s postulates were proved confirming C. eriobotryae as the causal organism of anthracnose disease in chilli.