| 苏云金芽孢杆菌YJ-2000菌株对家蚕安全性和杀虫活性的评价 |
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| 引用本文： | 蒋彩英,叶恭银,姚洪渭,胡萃.苏云金芽孢杆菌YJ-2000菌株对家蚕安全性和杀虫活性的评价[J].蚕业科学,2003,29(2):167-172. |
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| 作者姓名： | 蒋彩英 叶恭银 姚洪渭 胡萃 |
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| 作者单位： | 浙江大学应用昆虫学研究所,杭州,310029 |
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| 基金项目： | 国家重点基础研究发展规划“973”项目(001CB109004)，教育部优秀博士学位论文资助专项(199944)内容 |
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| 摘 要： | 应用时间-剂量-死亡率模型就苏云金芽孢杆菌(Bacillus thuringiensis)YJ-2000菌株对6种鳞翅目昆虫的杀虫活性作了初步评价。该菌株对家蚕基本无毒性,而对蔬菜害虫小菜蛾、菜粉蝶,水稻害虫三化螟、二化螟,桑树害虫桑螟幼虫均有不同程度的毒性,其中对小菜蛾和菜粉蝶的毒性最强;幼虫死亡率可高达100％。该菌株是对家蚕安全而对其它鳞翅目害虫具杀虫活性的特异性菌株,有望用于养蚕地区桑园及其邻近作物的鳞翅目害虫防治。
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| 关 键 词： | 苏云金芽孢杆菌 YJ-2000菌株 杀虫谱 时间-剂量-死亡率模型 |
| 文章编号： | 0257-4799(2003)02-0167-06 |
| 修稿时间： | 2002年10月7日 |
Evaluation of the Safety of Bacillus thuringiensis Strain YJ-2000 to the Silkworm,Bombyx mori and its Insecticidal Activities Against Other Lepidopterous Species |
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| JIANG Caiying YE Gongyin YAO Hongwei HU Cui.Evaluation of the Safety of Bacillus thuringiensis Strain YJ-2000 to the Silkworm,Bombyx mori and its Insecticidal Activities Against Other Lepidopterous Species[J].Acta Sericologica Sinica,2003,29(2):167-172. |
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| Authors: | JIANG Caiying YE Gongyin YAO Hongwei HU Cui |
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| Abstract: | Insecticidal activities of Bacillus thuringiensis strain YJ-2000 against six species of lepidopterous insects were evaluated with the time-dose-mortality mode. The strain was safe to the silkworm, Bombyx mori with very low toxicity, while showed the toxicity with different levels to vegetable insect pests such as Pieris rapae neonate larvae and 2nd instar larvae of Plutella xylostella, rice insect pests such as neonate larvae of Chilo suppressalis and Scirpophaga incertulas as well as mulberry insect pests such as 3rd or 4th instar larvae of Diaphania pyloalis. Among tested insect species, larvae of Plutella xylostella and Pieris rapae were the most susceptible to the strain, with the highest mortality of 100% .It is implied that the strain is a specific one both with the safety for the silkworm and the toxicity to other lepidopterous species and has a great potential for being utilized in microbial control of lepidopterous species on the mulbery and other crops near the mulberry garden. |
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| Keywords: | Bacillus thuringiensis strain YJ-2000 Insecticidal activity Bombpx mori Time-dose-mortality mode |
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