| 斯氏侧沟茧蜂对草地贪夜蛾幼虫的寄生行为及寄生效应 |
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| 引用本文： | 陈壮美,赵琳超,刘 航,廖用信,王 星.斯氏侧沟茧蜂对草地贪夜蛾幼虫的寄生行为及寄生效应[J].植物保护,2019,45(5):71-74. |
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| 作者姓名： | 陈壮美 赵琳超 刘 航 廖用信 王 星 |
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| 作者单位： | 1. 湖南农业大学植物保护学院, 植物病虫害生物学与防控湖南省重点实验室, 长沙 410128; 2. 湖南省武冈市农业农村局, 武冈 422400 |
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| 基金项目： | 生物多样性调查评估项目(2019HJ2096001006) |
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| 摘 要： | 草地贪夜蛾入侵我国后快速扩散,发现和保护利用本土天敌是有效抑制其暴发为害的重要途径。本研究以长沙地区农田常见的斯氏侧沟茧蜂为研究对象,系统观察了其对不同龄期草地贪夜蛾幼虫的寄生行为,测定了被寄生草地贪夜蛾幼虫体重和取食量的变化。结果表明,斯氏侧沟茧蜂能寄生2～4龄草地贪夜蛾幼虫,可显著抑制其体重增量和取食量,有效阻滞其进入暴食期,并最终致其死亡。说明斯氏侧沟茧蜂可有效寄生草地贪夜蛾幼虫,并抑制其生长和取食,对其具有一定生物防控能力,是值得保护和利用的本土寄生蜂。
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| 关 键 词： | 斯氏侧沟茧蜂 草地贪夜蛾 寄生行为 寄生效果 生物防治 |
| 收稿时间： | 2019/7/5 0:00:00 |
| 修稿时间： | 2019/7/7 0:00:00 |
Parasitic behavior and effect of Microplitis similis onSpodoptera frugiperda larvae |
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| CHEN Zhuangmei,ZHAO Linchao,LIU Hang,LIAO Yongxin,WANG Xing.Parasitic behavior and effect of Microplitis similis onSpodoptera frugiperda larvae[J].Plant Protection,2019,45(5):71-74. |
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| Authors: | CHEN Zhuangmei ZHAO Linchao LIU Hang LIAO Yongxin WANG Xing |
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| Institution: | 1. College of Plant Protection, Hunan Agricultural University, Hunan Provincial Key Laboratory forBiology and Control of Plant Diseases and Insect Pests, Changsha 410128, China; 2. Wugang Municipal Bureau of Agriculture and Rural Affairs, Hunan Province, Wugang 422400, China |
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| Abstract: | Spodoptera frugiperda has invaded China and spread rapidly, the discovery and protection of native natural enemies is a significant way to effectively suppress its outbreaks. In this study, the parasitic behavior of Microplitis similis collected from Changsha, China on different instar larvae of S.frugiperda was observed. And the change of the body weight and feed intake of the parasitized larvae were measured. The results showed that M.similis could successfully parasitized the 2nd to 4th instars larvae of S.frugiperda, significantly inhibited the body weight gain and food intake of larvae. Parasitics effectively suppressed food intake of larvae and eventually led to its death. The results indicated that the native M.similis could effectively parasitize the larvae of S.frugiperda, and inhibited its growth and food intake. Obviously, M.similis has certain biological control ability and is worthy of protection and utilization. |
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| Keywords: | Microplitis similis Spodoptera frugiperda parasitic behavior parasitic effects biological control |
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