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| 椰甲截脉姬小蜂对寄主龄期的选择性和适合性 | |
| 引用本文： | 唐超,Peng Zhengqiang,彭正强,沈有孝,吕宝乾,符悦冠,万方浩.椰甲截脉姬小蜂对寄主龄期的选择性和适合性[J].热带作物学报,2006,27(2):78-80. |
| 作者姓名： | 唐超 Peng Zhengqiang 彭正强 沈有孝 吕宝乾 符悦冠 万方浩 |
| 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,儋州,571737;华南热带农业大学环境与植物保护学院,海南,儋州,571737 2. 中国热带农业科学院环境与植物保护研究所,海南,儋州,571737 3. 海南省森林病虫防治检疫站,海口,570203 4. 中国农业科学院植物保护研究所植物病虫害生物学国家重点实验室,农业部外来有害生物预防与控制研究中心,北京,100094 |
| 基金项目： | 国家社会公益研究专项资金项目(2004DIA4J012)，国家科技攻关项目(2004BA509B17)，948项目(2005-Z48)椰心叶甲天敌引进及应用推广，973项目(2002CB111400)农村危险生物入侵机理与控制基础研究，海南省重点科技项目(04112)资助 |
| 摘 要： | 研究了椰甲截脉姬小蜂对寄主椰心叶甲各龄幼虫的选择性。结果表明:椰甲截脉姬小蜂可寄生椰心叶甲各龄幼虫,但偏爱寄生2,3龄幼虫,选择系数分别为0.33825和0.31348,极显著高于1,4,5龄幼虫。寄生各龄椰心叶甲幼虫的姬小蜂在羽化率、每寄主育出蜂数2指标中存在差异,寄生4龄幼虫的处理中,羽化率和每寄主育出蜂数分别为71.03%和40.87头,明显高于寄生其他龄期的幼虫,因此4龄椰心叶甲幼虫对椰甲截脉姬小蜂的生长发育最适合。 |
| 关 键 词： | 椰心叶甲 椰甲截脉姬小蜂 寄主龄期 选择性 寄主适合性 |
| 收稿时间： | 2005-10-09 |
| 修稿时间： | 2005-12-08 |
Host Age Preference and Suitability of Asecodes hispinarum |
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| Peng Zhengqiang.Host Age Preference and Suitability of Asecodes hispinarum[J].Chinese Journal of Tropical Crops,2006,27(2):78-80. | |
| Authors: | Peng Zhengqiang |
| Institution: | 1. Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences Danzhou 571737 Hainan China;2 .College of Environment and Plant Protection, South China University of Tropical Agriculture Danzhou 571737 Hainan China;3 .Forestory Bureau of Hainan Province Haikou 570203 Hainan China.4 .State Key Laboratory for Biology of Plant Disease and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences Beijing 100094 China |
| Abstract: | The preference and suitability of Asecodes hispinarum to various instars of Brontispa Logissina were studied in the laboratory. The results showed that Asecodes hispinarum parasitized all 5 instars of Brontispa Logissina, but preferred to parasitize the 2nd and 3rd instars when it was exposed to all the instars of larvae concurrently. The preference indexes to the 2nd and 3rd were 0.338 25 and 0.313 48 respectively, which were significant higher than the others. Host age at parasitization had significant effect on the emergence rate of parasitoids and the number of resultant wasps per host. In the treatment of 4th instar larva, the emergence rate of parasitoids and the number of resultant wasps per host were 71.03 % and 40.87, which were significant higher than the others. Therefore, the larva of Brontispa Logissina at the 4th instar rather than at the other instars was preferred by Asecodes hispinarum. |
| Keywords: | Brontispa Logissina Bouc? ek Asecodes hispinarum host age preference host suitability |
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