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<p>Asian corn borer (<i>Ostrinia furnacalis</i>) is one of the most destructive corn pests in Asia; entomopathogenic fungi (EPF) are considered as safe and effective method for their control. Currently, plant volatiles, a sustainable method, are utilized in order to deter insect oviposition. Here, we tested the hypothesis of the combination of entomopathogenic fungi (EPF) and a plant volatile compound for the control of <i>O. furnacalis</i>,and the enhancement of corn yield. In this study, factorial cage and field trials using EPF (<i>Beauveria bassiana</i>), in combination with the plant volatile compound <i>trans</i>-2-hexenal were conducted to determine treatment-effects on eggs, larvae number, and damage of <i>O. furnacalis</i>, and maize (<i>Zea mays</i>) yield. In the two single treatments of <i>B. bassiana</i> inoculation and <i>trans</i>-2-hexenal spray, significant decreases in eggs laid by <i>O. furnacalis</i> was detected. Meanwhile, larvae number, and wormhole number and tunnel length caused by <i>O. furnacalis</i> in the treatments with <i>trans</i>-2-hexenal or <i>B. bassiana</i> were significantly lower than that of the control. Synergistic effects of <i>B. bassiana</i> and <i>trans</i>-2-hexenal were also found, with significant reduction in the number of eggs and larvae, wormholes and tunnel length. Furthermore, maize yield was enhanced by the combination of <i>B. bassiana</i> and <i>trans</i>-2-hexenal. This was mainly attributed to both the reduction in egg mass and damage by <i>O. furnacalis</i>. The findings of the study reveal the potential of combining EPF and plant volatiles for controlling <i>O. furnacalis</i>. We demonstrate that multiple sustainable methods can synergistically contribute to integrated insect pest management, particularly considering life-history of insects.</p>

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Combined effects of entomopathogenic fungus and plant volatile compound on Asian corn borer, consequently for corn yield

  • 期刊论文

  • 发表日期：

    2026年2月14日

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  • Wurilaga Liang,
  • Guoqing Kang,
  • Li Sui,
  • Zhengkun Zhang,
  • Sicheng Ju,
  • Ren Bingzhong,
  • Qiyun Li,
  • Larissa R. Barelli,
  • Michael J. Bidochka,
  • Hui Zhu

摘要

Asian corn borer (Ostrinia furnacalis) is one of the most destructive corn pests in Asia; entomopathogenic fungi (EPF) are considered as safe and effective method for their control. Currently, plant volatiles, a sustainable method, are utilized in order to deter insect oviposition. Here, we tested the hypothesis of the combination of entomopathogenic fungi (EPF) and a plant volatile compound for the control of O. furnacalis,and the enhancement of corn yield. In this study, factorial cage and field trials using EPF (Beauveria bassiana), in combination with the plant volatile compound trans-2-hexenal were conducted to determine treatment-effects on eggs, larvae number, and damage of O. furnacalis, and maize (Zea mays) yield. In the two single treatments of B. bassiana inoculation and trans-2-hexenal spray, significant decreases in eggs laid by O. furnacalis was detected. Meanwhile, larvae number, and wormhole number and tunnel length caused by O. furnacalis in the treatments with trans-2-hexenal or B. bassiana were significantly lower than that of the control. Synergistic effects of B. bassiana and trans-2-hexenal were also found, with significant reduction in the number of eggs and larvae, wormholes and tunnel length. Furthermore, maize yield was enhanced by the combination of B. bassiana and trans-2-hexenal. This was mainly attributed to both the reduction in egg mass and damage by O. furnacalis. The findings of the study reveal the potential of combining EPF and plant volatiles for controlling O. furnacalis. We demonstrate that multiple sustainable methods can synergistically contribute to integrated insect pest management, particularly considering life-history of insects.