| 刘爱萍;徐林波;王慧.加拿大蓟天敌─欧洲方喙象的寄主专一性测定[J].植物保护,2007,33(1):62-65. |
| 加拿大蓟天敌─欧洲方喙象的寄主专一性测定 |
| Biology and host range tests of Cleonus piger,a natural enemy of Crisium arvense |
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| DOI： |
| 中文关键词: 加拿大蓟 欧洲方喙象 杂草生物防治 寄主专一性 |
| 英文关键词:Crisium arvense(L.) Scop Cleonus piger Scopovi biological control of weeds host range |
| 基金项目: |
| 刘爱萍;徐林波;王慧 |
| 中国农业科学院草原研究所 呼和浩特010010 |
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| 中文摘要: |
| 在温度为25～28℃的养虫室内选择具有代表性的菊科植物及豆科、禾本科牧草共10科30种植物对欧洲方喙象进行寄主专一性测定试验,结果表明其食性专一,只取食加拿大蓟,个别成虫或幼虫在饥饿状态下仅少量取食菊科其他植物,但随后即拒绝取食。非选择性试验(饥饿试验)表明欧洲方喙象耐饥饿能力强,不同龄期平均达28d。欧洲方喙象最适宜的生长温度是25℃,高于30℃或低于10℃,生长发育则受到抑制。 |
| 英文摘要: |
| The bioassay of Cleonus piger Scopovi was carried out in the laboratory,in which temperature was set at 25～28 ℃.Totally ten families and thirty species including Compositae,Legumioosae and Gramineae were chosen to test the host specificity of C.piger.The results showed that C.piger mainly fed on Crisium arvense(L.) Scop.Only a few adults(or larvae) fed on a few other Compositae plants slowly when they were very hungry.The non-choice test results indicated that the capability of C.piger against hunger averaged as long as 28d for different instars was strong than others.The optimal growth temperature for C.piger was 25 ℃.If the temperature was over 30 ℃ or under 10 ℃,its growth and development would be checked. |
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