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中国生物防治学报 ›› 2021, Vol. 37 ›› Issue (3): 443-450.DOI: 10.16409/j.cnki.2095-039x.2021.03.018

• 研究论文 • 上一篇    下一篇

江原钝绥螨对三种橘园害虫的捕食能力

李晓杨, 赵文娟, 郑薇薇, 张宏宇   

  1. 华中农业大学园艺植物生物学教育部重点实验室, 武汉 430070
  • 收稿日期:2020-06-15 出版日期:2021-06-08 发布日期:2021-06-16
  • 通讯作者: 郑薇薇,博士,副教授,E-mail:wwzheng@mail.hzau.edu.cn;张宏宇,博士,教授,E-mail:hongyu.zhang@mail.hzau.edu.cn。
  • 作者简介:李晓杨,硕士研究生,E-mail:3286731416@qq.com;赵文娟,硕士。
  • 基金资助:
    国家重点研发计划(2017YFD0201000,2017YFD0202003);国家现代农业产业技术体系(CARS-26)

Predation Abilities of the Amblyseius eharai on Different Prey Species

LI Xiaoyang, ZHAO Wenjuan, ZHENG Weiwei, ZHANG Hongyu   

  1. Key Laboratory of Horticultural Plant Biology (MOE), Huazhong Agricultural University, Wuhan 430070, China
  • Received:2020-06-15 Online:2021-06-08 Published:2021-06-16

摘要: 江原钝绥螨Amblyseius eharaiAmitai et Swirski广泛分布于我国各地的柑橘产区,是我国柑橘园的捕食螨优势种之一。由于滥用化学农药,大量叶螨天敌受到危害,叶螨的抗药性却逐年增强。利用天敌生物防治叶螨成为近年来柑橘害螨绿色防控的重要措施。本文主要研究了江原钝绥螨对柑橘全爪螨Panonychus citri McGregor、柑橘粉虱Dialeurodes citri Ashm和黄胸蓟马Thrips hawaiiensis Morgan等3种橘园害虫的捕食能力及选择性。结果表明,江原钝绥螨在28 ℃时,24 h内可以捕食柑橘全爪螨幼若螨约18.5头、柑橘粉虱1龄若虫约13.9头、黄胸蓟马1龄若虫约10.4头,且对3种猎物的功能反应均为HollingⅡ型。江原钝绥螨在28 ℃时具有最高的捕食效能,温度过高或过低,均会减弱江原钝绥螨对猎物的捕食能力。在柑橘全爪螨、柑橘粉虱和黄胸蓟马这3种猎物同时存在的情况下,江原钝绥螨会优先捕食柑橘全爪螨,占被捕食的比例为82.14%。江原钝绥螨雌成螨对柑橘全爪螨各螨态的取食具有选择性,其幼、若螨是江原钝绥螨的嗜好虫态。本研究表明江原钝绥螨对柑橘全爪螨、柑橘粉虱、黄胸蓟马均有较强的控制潜力,为江原钝绥螨的田间应用提供了理论依据。

关键词: 江原钝绥螨, 柑橘全爪螨, 柑橘粉虱, 黄胸蓟马, 生物防治

Abstract: As one of the dominant species of predatory mites in citrus orchards, Amblyseius eharai Amitai et Swirski is widely distributed in citrus production areas in China. The indiscriminate use of chemical pesticides is harmful to a large number of natural enemies of spider mites, while the drug resistance is increasing year by year. The use of natural enemy organisms to control spider mites has become an important green control measure for citrus pest mites in recent years. In this paper, the predatory ability and selectivity of A. eharai on three orchard pests, including Panonychus citri McGregor, Dialeurodes citri Ashm and Thrips hawaiiensis Morgan, were investigated. The results showed that, A. eharai could prey on about 18.5 larva and nymphs of P. citri, 13.9 nymphs of D. citri, and 10.4 nymphs of T. hawaiiensis within 24 h at 28℃. The functional responses to these three prey species were of Holling II type. The predation efficiency of A. eharai is highest at 28℃, but much higher or lower temperature will reduce the predation ability. While P. citri, D. citri and T. hawaiiensis exist at the same time, A. eharai would preferentially prey on P. citri, accounting for 82.14% of the prey taken. Female adult A. eharai are selective for feeding on all developmental stages of the P. citri, and their larva and nymph are the preferred stages. Our study shows that A. eharai has strong potential to control P. citri, D. citri and T. hawaiiensis, which provides a theoretical basis for the field application of A. eharai.

Key words: Amblyseius eharai, Panonychus citri, Dialeurodes citri, Thrips hawaiiensis, biological control

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