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中国生物防治学报 ›› 2022, Vol. 38 ›› Issue (1): 42-49.DOI: 10.16409/j.cnki.2095-039x.2021.01.018

• 新疆主要病虫害生物防治研究论文 • 上一篇    下一篇

三种杀虫(螨)剂对双尾新小绥螨捕食作用的影响

符振实, 唐思琼, 苏杰, 陈静, 张建萍   

  1. 石河子大学农学院/新疆绿洲农业病虫害治理与植保资源利用重点实验室, 石河子 832000
  • 收稿日期:2020-08-11 出版日期:2022-02-08 发布日期:2022-03-01
  • 通讯作者: 张建萍,教授,E-mail:zhjp_agr@shzu.edu.cn。
  • 作者简介:符振实,硕士研究生,E-mail:747684069@qq.com;唐思琼,硕士研究生,E-mail:1595018219@qq.com
  • 基金资助:
    国家重点研发计划(2017YFD0201900);国家自然科学基金(32060635);兵团区域创新引导计划项目(2018BB043);农业部西北荒漠绿洲作物有害生物综合治理重点实验室开放基金(KFJJ202004);石河子大学高层次人才科研启动项目(RCZK201947)

Influence of Three Insecticides (Acaricides) on Predation Function of Neoseiulus bicaudus

FU Zhenshi, TANG Siqiong, SU Jie, CHEN Jing, ZHANG Jianping   

  1. Key Laboratory of Oasis Agricultural Pest Management and Plant Resource Utilization, Xinjiang Uygur Autonomous Region/College of Agriculture, Shihezi University, Shihezi 832000, China
  • Received:2020-08-11 Online:2022-02-08 Published:2022-03-01

摘要: 为了研究杀虫(螨)剂对双尾新小绥螨的安全性,本文采用喷雾法检测了丁氟螨酯、氯虫苯甲酰胺和噻虫嗪对双尾新小绥螨和土耳其斯坦叶螨的毒力,并对三种杀虫(螨)剂的不同施药方式对双尾新小绥螨捕食作用的影响进行了检测。结果表明,丁氟螨酯对双尾新小绥螨的毒性显著低于土耳其斯坦叶螨,在1000 mg/L浓度下,双尾新小绥螨校正死亡率低于15%,对土耳其斯坦叶螨的LC50为65.08 mg/L;氯虫苯甲酰胺和噻虫嗪对双尾新小绥螨及土耳其斯坦叶螨的毒性均较弱,在各药剂浓度下其校正死亡率均低于20%。三种药剂处理后,双尾新小绥螨对猎物的瞬时攻击率、捕食能力、日最大捕食量降低,寻找效应有所降低,对猎物的处理时间延长;三种药剂对双尾新小绥螨捕食作用的影响由大到小依次为噻虫嗪,氯虫苯甲酰胺,丁氟螨酯。其次,除了释放捕食螨前喷施丁氟螨酯处理,其他处理均对双尾新小绥螨的捕食作用有显著影响;在每种药剂处理下,先释放捕食螨后施药对双尾新小绥螨捕食作用的影响显著大于先施药后释放捕食螨。因此,丁氟螨酯对双尾新小绥螨的存活及捕食作用影响较小,在田间害螨大发生时可先用该药剂降低基数后,再释放双尾新小绥螨联合防治害螨,从而减少化学农药使用剂量和次数;使用氯虫苯甲酰胺和噻虫嗪防治其他害虫时,可在释放双尾新小绥螨前施用,从而减小对双尾新小绥螨捕食作用的影响。

关键词: 捕食螨, 丁氟螨酯, 噻虫嗪, 氯虫苯甲酰胺, 捕食能力, 生物防治

Abstract: The safety of insecticides (acaricides) to Neoseiulus bicaudus was evaluated throug measuring the toxicity of cyflumetofen, chlorantraniliprole and thiamethoxam to N. bicaudus and T. turkestani by spraying method. The influence of three insecticides (acaricides) and different application methods on the predation of N. bicaudus were determined. The results showed that the toxicity of cyflumetofen on N. bicaudus was significantly lower than that on T. turkestani, the corrected mortality rate of N. bicaudus was below 15% even at the concentration of 1000 mg/L, whereas the LC50 for T. turkestani was 65.08 mg/L. Toxicity of chlorantraniliprole and thiamethoxam on both N. bicaudus and T. turkestani was low, and the corrected mortality rate was below 20%. When treated with the three pesticides, the predatory mites showed decreased attack rate, predation ability, maximum consumption rate and searching efficiency and elongated handling time. The strength of the influence of the three agents ranked as:thiamethoxam > chlorantraniliprole > cyflumetofen. Amont the multiple treatments, only spraying cyflumetofen before releasing the predatory mite showed no significant influence on the predation function of N. bicaudus. With each insecticide, spraying before releasing predatory mites resulted in a less significantly influence than that of spraying after releasing predatory mites. Cyflumetofen showed only limited negative influence on the survival and predation of N. bicaudus. When field pest mites outbreak, cyflumetofen can be sprayed to reduce the pest population and then N. bicaudus can be released to achieve a combined control of the pests, thus reducing the dose and frequency of pesticide sprays. When chlorantraniliprole and thiamethoxam are used for control of other pests, it is better that they are used before releasing N. bicaudus, thus reducing their negative influence on N. bicaudus.

Key words: predatory mites, cyflumetofen, chlorantraniliprole, thiamethoxam, predation ability, biological control

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