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<p>Both in pre- and post-harvest stages <i>Phytophthora palmivora</i> and <i>Lasiodiplodia theobromae</i> infections cause losses in durian production. In this study, antagonistic fungi, isolated from healthy durian fruits, were evaluated for their antagonistic effects against fruit rot disease caused by both pathogens. Results showed that the crude extracts of <i>Talaromyces tratensis</i> KUFA1604 and <i>Trichoderma asperellum</i> KUFA1606 displayed fungicidal activity in controlling fruit rot of durian, by fruit dipping, in a dose-dependent manner. The durian fruits treated with crude extracts of the tested <i>Talaromyces</i> and <i>Trichoderma</i> at a high concentration of 10,000&#xa0;ppm showed antifungal activity, reducing disease severity induced by <i>P. palmivora</i> and <i>L. theobromae</i> by 66.90%–70.53% and 49.41%–54.51%, respectively. At a concentration of 5,000&#xa0;ppm, both fungi inhibited the disease severity of <i>P. palmivora</i> by 36%–60.98% and of <i>L. theobromae</i> by less than 50%. Prochloraz, a systemic, broad- spectrum imidazole fungicide, displayed the best fungicidal activity, whereas spore suspension and crude extract of <i>T. tratensis</i> KUFA1604 and <i>T. asperellum</i> KUFA1606, at a low concentration of 1,000&#xa0;ppm exhibited low fungicidal activity. To the best of our knowledge, this is the first report of the potential of <i>Talaromyces</i> and <i>Trichoderma</i>, isolated from durian fruit in controlling post-harvest fruit rot disease caused by <i>L. theobromae</i> and <i>P. palmivora</i>.</p>

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The use of Talaromyces tratensis KUFA1604 and Trichoderma asperellum KUFA1606 for the control of durian fruit rot disease

  • 期刊论文

  • 发表日期：

    2026年4月21日

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  • Kulisara Romlumduan,
  • Chutima Kaewkrajay,
  • Tida Dethoup

摘要

Both in pre- and post-harvest stages Phytophthora palmivora and Lasiodiplodia theobromae infections cause losses in durian production. In this study, antagonistic fungi, isolated from healthy durian fruits, were evaluated for their antagonistic effects against fruit rot disease caused by both pathogens. Results showed that the crude extracts of Talaromyces tratensis KUFA1604 and Trichoderma asperellum KUFA1606 displayed fungicidal activity in controlling fruit rot of durian, by fruit dipping, in a dose-dependent manner. The durian fruits treated with crude extracts of the tested Talaromyces and Trichoderma at a high concentration of 10,000 ppm showed antifungal activity, reducing disease severity induced by P. palmivora and L. theobromae by 66.90%–70.53% and 49.41%–54.51%, respectively. At a concentration of 5,000 ppm, both fungi inhibited the disease severity of P. palmivora by 36%–60.98% and of L. theobromae by less than 50%. Prochloraz, a systemic, broad- spectrum imidazole fungicide, displayed the best fungicidal activity, whereas spore suspension and crude extract of T. tratensis KUFA1604 and T. asperellum KUFA1606, at a low concentration of 1,000 ppm exhibited low fungicidal activity. To the best of our knowledge, this is the first report of the potential of Talaromyces and Trichoderma, isolated from durian fruit in controlling post-harvest fruit rot disease caused by L. theobromae and P. palmivora.