| 日本食蚧蚜小蜂的寄生行为观察 |
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| 引用本文： | 李贤,符悦冠,朱俊洪,吴晓霜,陈俊谕,李磊,韩冬银,牛黎明,张方平. 日本食蚧蚜小蜂的寄生行为观察[J]. 热带作物学报, 2019, 40(3): 535-540. DOI: 10.3969/j.issn.1000-2561.2019.03.017 |
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| 作者姓名： | 李贤 符悦冠 朱俊洪 吴晓霜 陈俊谕 李磊 韩冬银 牛黎明 张方平 |
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| 作者单位： | 1. 中国热带农业科学院环境与植物保护研究所,海南海口 5711012. 海南大学热带农林学院,海南海口 570228 |
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| 基金项目： | 中国热带农业科学院基本科研业务费(1630042017002);海南省重点研发项目(ZDYF2017041);天然橡胶产业技术体系(CARS-33-GW- BC2) |
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| 摘 要： | 日本食蚧蚜小蜂Coccophagus japonicus Compere是橡副珠蜡蚧Parasaissetia nigra Nietner的重要天敌之一。为了明确该蜂的寄生行为及雌蜂体型大小对其产卵的影响,在室内观察其寄生行为及雌蜂不同体型大小条件下的产卵情况。结果表明：日本食蚧蚜小蜂的寄生过程包括搜寻寄主、识别寄主、产卵器刺探、产卵、产卵后处理5个阶段。日本食蚧蚜小蜂的寄生时间、寄生率、平均着卵量随寄生次数增多而增加,寄生次数与卵量吻合率随寄生次数增加而降低;第1次寄生时,寄生所需时间为19.75 s,寄生率为73.12%,寄生次数与卵量吻合率为69.89%,平均着卵量为0.76粒;第3次寄生时,寄生所需时间为24.37 s,寄生率为83.33%,寄生次数与卵量吻合率仅为8.33%,平均着卵量为1.67粒。雌蜂体型大小与其产卵量呈正相关,体长小于等于1.20 mm时,产卵量及寄生率最小,分别为16.83粒和49.4%;1.40 mm<体长≤1.50 mm时产卵量为33.06粒,寄生率72.3%;而体长大于1.50 mm时产卵量达37.5粒,寄生率为72.2%;雌蜂后足胫节长对其产卵及寄生率也有类似影响,说明该蜂扩繁时应选用体型较大的雌蜂。
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| 关 键 词： | 日本食蚧蚜小蜂 寄生行为 体型大小 寄生时间 寄生率 日产卵量 |
| 收稿时间： | 2018-08-17 |
Parasitic Behavior of Coccophagus japonicus Compere |
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| LI Xian,FU Yueguan,ZHU Junhong,WU Xiaoshuang,CHEN Junyu,LI Lei,HAN Dongyin,NIU Liming,ZHANG Fangping. Parasitic Behavior of Coccophagus japonicus Compere[J]. Chinese Journal of Tropical Crops, 2019, 40(3): 535-540. DOI: 10.3969/j.issn.1000-2561.2019.03.017 |
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| Authors: | LI Xian FU Yueguan ZHU Junhong WU Xiaoshuang CHEN Junyu LI Lei HAN Dongyin NIU Liming ZHANG Fangping |
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| Affiliation: | 1. Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan 571101, China2. Institute of Tropical Agriculture and Forestry, Hainan University, Haikou, Hainan 570228, China |
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| Abstract: | Coccophagus japonicus Compere is one of the important natural enemies of Parasaissetia nigra Nietner. In order to understand the parasitic behavior of the parasitic wasp and the effect of female body size on oviposition, the parasitic behavior of the parasite wasp and the oviposition of female wasps with different body sizes were observed in the laboratory. The results showed that the parasitic process of C. japonicus Compere consisted of five stages: searching for hosts, identifying hosts, probing by ovipositor, laying eggs and post-oviposition treatment. The parasitic duration, parasitic rate, and average egg numbers increased with the parasitic time. The coincidence ratio between parasitic frequency and egg number decreased with the parasitic time. When the wasps parasitized for the first time, the parasitic duration, the parasitism rate, the coincidence ratio between parasitic frequency and egg number, the average egg number was 19.75 s, 73.12%, 69.89% and 0.76, respectively; When the wasps parasitized the same hosts for the third time, the parasitic duration, the parasitism rate, the coincidence ratio between parasitic frequency and egg number and the average egg number was 24.37, 83.33%, 8.33% and 1.67, correspondingly. There was a positive correlation between the body size of female wasps and oviposition, and the daily fecundity and parasitic rate of female wasps increased with the body sizes of female wasps. When the body length of female wasps is less than 1.20 mm, the average fecundity and parasitic rate were relatively smaller, which was 16.83 and 49.4%, respectively. When the body length was between 1.40 mm and 1.50 mm, the average fecundity and parasitic rate was 33.06 and 72.3%, respectively. When the body length was longer than 1.50 mm, the average fecundity and parasitic rate was 37.5 and 72.2%, respectively; The length of the posterior tibia of female wasps had a similar effect on oviposition and parasitic rate. It is suggested that the larger female wasps should be used in the reproduction expansion. |
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| Keywords: | Coccophagus japonicus Compere parasitic behavior body size parasitic time parasitism rate daily eggs production |
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