| 美洲斑潜蝇对功夫抗性和敏感品系的选育 |
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| 引用本文： | 林进添,宾淑英,曾玲,梁广文.美洲斑潜蝇对功夫抗性和敏感品系的选育[J].华中农业大学学报,2002,21(1):10-12. |
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| 作者姓名： | 林进添 宾淑英 曾玲 梁广文 |
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| 作者单位： | 1. 仲恺农业技术学院植物保护系,广州,510225
2. 华南农业大学昆虫生态研究室,广州,510642 |
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| 基金项目： | 国家科委“八五”科技攻关增强专题(85-021-0801)，广东省自然科学基金资助项目(960525) |
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| 摘 要： | 用功夫对美洲斑潜蝇3龄幼虫进行抗性品系（Cy-R）筛选，经50代选育，抗性指数提高到49．14倍，筛选前的LC50值为0.0152g/L，筛选后的LC50值为0.2506g/L。敏感品系选育试验表明，经10代筛选，抗性指数由筛选前的5．00倍降低至1．00倍。对功夫产生抗性的品系对灭扫利和速灭杀丁有交互抗性，而对杀虫单，毒死蜱，害极灭无交互抗性，其抗性倍数分别为6．30倍，4．07倍，1．41倍，1．35倍和1．05倍。
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| 关 键 词： | 美洲斑潜蝇 功夫 选育 抗药性 杀虫剂 抗性品系 敏感品系 |
| 修稿时间： | 2001年10月21 |
Selection of Resistant and Susceptible Strains of Liriomyza sativae Blanchard to Cyhalothrin |
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| Lin Jintian,Bin Shuying,Zeng Ling,Liang Guangwen.Selection of Resistant and Susceptible Strains of Liriomyza sativae Blanchard to Cyhalothrin[J].Journal of Huazhong Agricultural University,2002,21(1):10-12. |
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| Authors: | Lin Jintian Bin Shuying Zeng Ling Liang Guangwen |
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| Institution: | Lin Jintian 1) Bin Shuying 1) Zeng Ling 2) Liang Guangwen 2) |
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| Abstract: | Vegetable leafminer ( Liriomyza sativae Blanchard ) larvae in 3rd instar were applied with Cyhalothrin in successive generation in the laboratory to develop a resistant strain ( Cy-R). After 50 generations, the resistance index of this pest to Cyhalothrin increased to 49.14-fold. The LC 50 of population before selection and after selection were 0.0152 g/L and 0.2506 g/L. A strain (Cy-S) susceptible to Cyhalothrin was developed by selection of 10 generations without insecticide, and its resistance index decreased from 5.00-fold to 1.00-fold. The Cy-R strains have distinct cross resistance to Fenpropathrin (6.30-fold) and Fenvalerate (4.07-fold), but no cross resistance to Mehypo (1.41-fold), Chlorpyrifos (1.35-fold) and Agrimec @ (1.05-fold). |
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| Keywords: | Liriomyza sativae Blanchard Cyhalothrin resistance |
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