| 徐伟松1,2;钟国华1;李畅方2;罗建军1;胡美英1.两种拟青霉菌提取物对菜蚜的控制作用[J].植物保护,2007,33(6):35-38. |
| 两种拟青霉菌提取物对菜蚜的控制作用 |
| Laboratory and field evaluation on insecticidal activity of the metabolites from two Paecilomyces spp. against aphids |
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| DOI： |
| 中文关键词: 拟青霉 代谢产物 杀虫活性 萝卜蚜 桃蚜 |
| 英文关键词:paecilomyces metabolites insecticidal activity Lipaphis erysimi Myzus persicae |
| 基金项目: |
| 徐伟松1 2;钟国华1;李畅方2;罗建军1;胡美英1 |
| 1.华南农业大学昆虫毒理研究室 生物防治教育部工程研究中心 广州 510642;2.广东省植物保护总站 广州 510500 |
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| 中文摘要: |
| 浸叶法毒力测定结果表明,淡紫拟青霉(Paecilomyces lilacinus)菌株MCWA18和拟青霉(Paecilomycessp.)菌株X1甲醇萃取物对萝卜蚜无翅成蚜48 h后LC50分别为0.3435 mg/mL和0.8309 mg/mL。网室盆栽试验,菌株MCWA18和X1甲醇萃取物2.5 mg/mL处理7 d后对菜蚜的防治效果分别为92.24%和87.06%,田间小区试验处理后7 d,防治效果分别为81.82%和81.70%,相当于1.3%鱼藤氰乳油500倍的防效。 |
| 英文摘要: |
| Studies of biological activity indicated that methanol partitions from the extracts of Paecilomyces lilacinus MCWA18 and Paecilomyces sp.X1 strain had high activity against wingless adult of Lipaphis erysimi and the values of LC50 were 0.343 5 mg/mL and 0.830 9 mg/mL by leaf-dipping treatment for 48 h,respectively.The results showed that both of the extracts from P.lilacinus MCWA18 and Paecilomyces sp.X1 could well control aphids by spraying at the concentration of 2.5 mg/mL and the control efficacy was 92.24% and 87.06% in pot trials and 81.82%,81.70% in field trials after treatment for 7 d,respectively. |
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