Scholarlink

<p>Teak (<i>Tectona grandis</i> Linn. f.) is one of the most valuable and ecologically important tree species due to its high-quality timber and numerous industrial uses worldwide. During surveys conducted in February 2025, a new leaf blight disease of teak was observed in several plantations in Sylhet and the Chittagong Hill Tracts of Bangladesh. Isolates were constantly recovered from the necrotic areas of the leaves. Morphological and cultural features along with multi-gene phylogenetic analyses confirmed the identification of the pathogen as <i>Colletotrichum siamense</i>. Pathogenicity of the pathogen was confirmed on detached healthy leaves through artificial inoculations, fulfilling Koch’s postulates. To our knowledge, this is the first report of <i>C. siamense</i> causing leaf blight on <i>T. grandis</i> in Bangladesh.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

First report of Colletotrichum siamense causing leaf blight on teak (Tectona grandis) in Bangladesh

  • 期刊论文

  • 发表日期：

    2026年2月18日

查看全文
  • Md. Shariar Hossain Sazzad,
  • Syeda Munjiba Islam,
  • Sadikul Islam Nayon,
  • Sabrina Saniat Ayon,
  • Romel Ahmed,
  • Mohammed Masum Ul Haque

摘要

Teak (Tectona grandis Linn. f.) is one of the most valuable and ecologically important tree species due to its high-quality timber and numerous industrial uses worldwide. During surveys conducted in February 2025, a new leaf blight disease of teak was observed in several plantations in Sylhet and the Chittagong Hill Tracts of Bangladesh. Isolates were constantly recovered from the necrotic areas of the leaves. Morphological and cultural features along with multi-gene phylogenetic analyses confirmed the identification of the pathogen as Colletotrichum siamense. Pathogenicity of the pathogen was confirmed on detached healthy leaves through artificial inoculations, fulfilling Koch’s postulates. To our knowledge, this is the first report of C. siamense causing leaf blight on T. grandis in Bangladesh.