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<p>In this study, mango fruit trees cv. Kent (<i>Mangifera indica</i> L.) grown in Nayarit, Mexico, during the 2024 and 2025 seasons were preharvest-treated with four applications of microencapsulated <i>Meyerozyma guilliermondii</i> LMA-Cp01 (0.4&#xa0;g L⁻¹), either alone or combined with sodium benzoate (SB, 1&#xa0;g L⁻¹) to manage anthracnose disease. Benomyl served as a positive control, while untreated trees were considered negative controls. The impact of preharvest treatments on mango trees’ flowering and bud development was examined, and population dynamics of <i>M. guilliermondii</i> on flowers and fruit surfaces were monitored. Postharvest evaluations included natural anthracnose incidence, severity index, and fruit quality under two storage conditions. Flowering and bud development were unaffected by any treatment. <i>M. guilliermondii</i> successfully adhered to and colonized flower and fruit surfaces, maintaining its viability throughout the experiments. All tested treatments significantly reduced anthracnose incidence and severity. Individually, microencapsulated <i>M. guilliermondii</i> or SB showed limited efficacy, whereas their combination demonstrated additive and synergistic effects, achieving higher anthracnose reduction. Combined treatments performed comparably to Benomyl across both seasons. Postharvest spraying did not enhance bio-efficacy beyond preharvest applications. Overall, the biofungicide combining <i>M. guilliermondii</i> with SB consistently reduced anthracnose and maintained fruit quality, representing a promising alternative to chemical fungicides for sustainable mango production.</p>

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Preharvest application of Meyerozyma guilliermondii LMA-Cp01 biofungicide combined with sodium benzoate for eco-friendly management of anthracnose disease on mango fruit

  • 期刊论文

  • 发表日期：

    2026年3月10日

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  • Rafael López‑Cruz,
  • Juan Arturo Ragazzo‑Sánchez,
  • Montserrat Calderón‑Santoyo

摘要

In this study, mango fruit trees cv. Kent (Mangifera indica L.) grown in Nayarit, Mexico, during the 2024 and 2025 seasons were preharvest-treated with four applications of microencapsulated Meyerozyma guilliermondii LMA-Cp01 (0.4 g L⁻¹), either alone or combined with sodium benzoate (SB, 1 g L⁻¹) to manage anthracnose disease. Benomyl served as a positive control, while untreated trees were considered negative controls. The impact of preharvest treatments on mango trees’ flowering and bud development was examined, and population dynamics of M. guilliermondii on flowers and fruit surfaces were monitored. Postharvest evaluations included natural anthracnose incidence, severity index, and fruit quality under two storage conditions. Flowering and bud development were unaffected by any treatment. M. guilliermondii successfully adhered to and colonized flower and fruit surfaces, maintaining its viability throughout the experiments. All tested treatments significantly reduced anthracnose incidence and severity. Individually, microencapsulated M. guilliermondii or SB showed limited efficacy, whereas their combination demonstrated additive and synergistic effects, achieving higher anthracnose reduction. Combined treatments performed comparably to Benomyl across both seasons. Postharvest spraying did not enhance bio-efficacy beyond preharvest applications. Overall, the biofungicide combining M. guilliermondii with SB consistently reduced anthracnose and maintained fruit quality, representing a promising alternative to chemical fungicides for sustainable mango production.