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Cooperative herbivory between two important pests of rice

Author

Listed:
  • Qingsong Liu

    (Chinese Academy of Agricultural Sciences
    Xinyang Normal University)

  • Xiaoyun Hu

    (Chinese Academy of Agricultural Sciences)

  • Shuangli Su

    (Chinese Academy of Agricultural Sciences)

  • Yuese Ning

    (Chinese Academy of Agricultural Sciences)

  • Yufa Peng

    (Chinese Academy of Agricultural Sciences)

  • Gongyin Ye

    (Zhejiang University)

  • Yonggen Lou

    (Zhejiang University)

  • Ted C. J. Turlings

    (University of Neuchâtel)

  • Yunhe Li

    (Chinese Academy of Agricultural Sciences)

Abstract

Normally, when different species of herbivorous arthropods feed on the same plant this leads to fitness-reducing competition. We found this to be different for two of Asia’s most destructive rice pests, the brown planthopper and the rice striped stem borer. Both insects directly and indirectly benefit from jointly attacking the same host plant. Double infestation improved host plant quality, particularly for the stemborer because the planthopper fully suppresses caterpillar-induced production of proteinase inhibitors. It also reduced the risk of egg parasitism, due to diminished parasitoid attraction. Females of both pests have adapted their oviposition behaviour accordingly. Their strong preference for plants infested by the other species even overrides their avoidance of plants already attacked by conspecifics. This cooperation between herbivores is telling of adaptations resulting from the evolution of plant-insect interactions, and points out mechanistic vulnerabilities that can be targeted to control these major pests.

Suggested Citation

  • Qingsong Liu & Xiaoyun Hu & Shuangli Su & Yuese Ning & Yufa Peng & Gongyin Ye & Yonggen Lou & Ted C. J. Turlings & Yunhe Li, 2021. "Cooperative herbivory between two important pests of rice," Nature Communications, Nature, vol. 12(1), pages 1-13, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-27021-0
    DOI: 10.1038/s41467-021-27021-0
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    References listed on IDEAS

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    1. Ying-Bo Mao & Yao-Qian Liu & Dian-Yang Chen & Fang-Yan Chen & Xin Fang & Gao-Jie Hong & Ling-Jian Wang & Jia-Wei Wang & Xiao-Ya Chen, 2017. "Jasmonate response decay and defense metabolite accumulation contributes to age-regulated dynamics of plant insect resistance," Nature Communications, Nature, vol. 8(1), pages 1-13, April.
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