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中国生物防治学报 ›› 2024, Vol. 40 ›› Issue (3): 516-523.DOI: 10.16409/j.cnki.2095-039x.2023.11.002

• 研究论文 • 上一篇    

四川省犍为县两种纵卷叶螟幼虫和蛹的寄生蜂种类及发生动态

钱佳宁1, 彭成林2, 赵晓昱1,3, 丁柃文1,4, 徐红星1, 田俊策1, 谢馨2, 郭嘉雯1, 吕仲贤1   

  1. 1. 浙江省农业科学院植物保护与微生物研究所/农产品质量安全危害因子与风险防控省部共建国家重点实验室, 杭州 310021;
    2. 四川省犍为县农业技术推广中心, 乐山 614400;
    3. 中国计量大学生命科学学院, 杭州 310018;
    4. 贵州大学, 贵阳 550025
  • 收稿日期:2023-03-31 发布日期:2024-06-07
  • 通讯作者: 郭嘉雯,博士,助理研究员,E-mail:guojiawen91@126.com;吕仲贤,博士,研究员,E-mail:luzxmh@163.com。
  • 作者简介:钱佳宁,助理实验师,E-mail:qjn768969596@163.com;彭成林,推广研究员,E-mail:1623545087@qq.com。

Species and Occurrence Dynamics of Larval and Pupal Parasitoids of Two Rice Leaffolders in Qianwei County, Sichuan Province

Qian Jianing1, peng Chenglin2, zhao Xiaoyu1,3, Ding Lingwen1,4, Xu Hongxing1, tian Junce1, Xie Xin2, Guo Jiawen1, Lü Zhongxian1   

  1. 1. State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products/Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China;
    2. Agricultural Technology Extension Center of Qianwei, Sichuan Province, Leshan 614400, China;
    3. College of Life Sciences, China Jiliang University, Hangzhou 310018, China;
    4. Guizhou University, Guiyang 550025, China
  • Received:2023-03-31 Published:2024-06-07
  • Contact: 国家自然科学基金(32202280);国家水稻产业技术体系(CARS-01);浙江省自然科学基金(LQ22C140006)
  • Supported by:
    10.16409/j.cnki.2095-039x.2023.11.002

摘要: 本研究旨在明确稻显纹纵卷叶螟和稻纵卷叶螟幼虫和蛹寄生蜂种类和优势寄生蜂种类差异,为两种纵卷叶螟的种间竞争机制研究和生物防治提供理论依据。通过采集四川省犍为县两种纵卷叶螟幼虫和蛹,于室内饲养羽化并收集寄生蜂,鉴定寄生蜂种类和调查自然寄生情况。结果显示,稻显纹纵卷叶螟和稻纵卷叶螟幼虫和蛹的寄生蜂种类主要有8种。其中,在两种纵卷叶螟中均发现的寄生蜂为趋稻厚唇姬蜂Phaeogenes sp.,仅在稻显纹纵卷叶螟中发现的寄生蜂为无脊大腿小蜂 Brachymeria excarinata(Gahan, 1925)、粘虫广肩小蜂 Eurytoma verticillata (Fabricius, 1798)、黄眶离缘姬蜂 Trathala flavo-orbitalis (Cameron, 1907)、具柄凹眼姬蜂指明亚种 Casinaria pedunculata(Szépligeti, 1908)和稻苞虫兔唇姬小蜂 Dimmockia secunda (Crawford, 1910),仅在稻纵卷叶螟中发现的寄生蜂为棱角肿腿蜂Goniozus sp.和大螟钝唇姬蜂Eriborus terebrans。稻显纹纵卷叶螟的寄生蜂寄生率(0.01%~0.46%)比稻纵卷叶螟寄生率(0.34%~2.07%)低。大螟钝唇姬蜂为稻纵卷叶螟寄生蜂的丰富种且优势度指数最高,但无脊大腿小蜂是稻显纹纵卷叶螟中优势度指数最高的优势种寄生蜂。稻显纹纵卷叶螟的寄生蜂优势种随时间发生变化,7月和9月的优势寄生蜂为无脊大腿小蜂,而8月为趋稻厚唇姬蜂和黄眶离缘姬蜂。但是,10月采集的稻显纹纵卷叶螟没有发现寄生蜂寄生的现象。两种纵卷叶螟虽为近缘种,但二者寄生蜂种类和优势寄生蜂种类存在差异。

关键词: 稻显纹纵卷叶螟, 稻纵卷叶螟, 寄生蜂, 发生差异, 寄生率

Abstract: The aim of this study is to clarify the differences in larval and pupal parasitic wasp species and dominant parasitic wasp species between Cnaphalocrocis exigua and Cnaphalocrocis medinalis so as to provide theoretical basis for the study of interspecific competition mechanisms and biological control of these two species. Parasitic wasp species were identified and natural parasitism were recorded from the wasps emerging from the larvae and pupae of these two species collected in Qianwei County, Sichuan Province and then reared in laboratory. The results showed that there were eight main parasitic wasp species in the larvae and pupae of C. exiguaandC. medinalis. Among them, the wasp species emerged from both species was Phaeogenessp. The wasp species found only from C. exigua included Brachymeria excarinata (Gahan, 1925), Eurytoma verticillata(Fabricius, 1798), Trathala flavo-orbitalis(Cameron, 1907), Casinaria pedunculata (Szépligeti, 1908), and Dimnockia secunda(Crawford, 1910). Those emerged only fromC. medinalis were Goniozus sp. and Eriborus terebrans. The parasitism rate of C. exigua (0.01%―0.46%) was lower than that of C. medinalis (0.34%―2.07%). E. terebrans was a dominant wasp species parasitizingC. medinalis with the highest dominance index, but B. excarinata was the dominant species parasitizingC. exigua with the highest dominance index. The dominant parasitic wasp species of C. exigua changed with seasons, beingB. excarinatain July and September but being Phaeogenes sp. Trathala flavo-orbitalis in August. No parasitic wasps were found in C. exigua collected in October. This study indicates that although C. exiguaand C. medinalis are related species, there are differences in the parasitic wasp species and dominant parasitic wasps between these two species.

Key words: Cnaphalocrocis exigua, Cnaphalocrocis medinalis, parasitic wasps, occurrence differences, parasitic rate

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