| 左 杰，周国英，杨 菁，等.艾蒿和苦楝提取物对油茶尺蠖的生物活性研究[J].广东农业科学,2015,42(8):44-50 |
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艾蒿和苦楝提取物对油茶尺蠖的生物活性研究 |
| Bioactivity of extracts from Artemisia argyi andMelia azedarach against Biston marginata |
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| DOI： |
| 中文关键词: 苦楝 艾蒿 植物提取物 油茶尺蠖 选择性拒食作用 触杀作用 生物活性 |
| 英文关键词: Melia azedarach Artemisia argyi plant extracts Biston marginata selective antifeeding activities contact toxicity activities bioactivity |
| 基金项目: |
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| 中文摘要: |
| 采用浸渍叶蝶法和浸虫法测定了艾蒿（Artemisia argyi）和苦楝（Melia azedarach）的乙醇、石油醚和
乙酸乙酯提取物对油茶尺蠖（Biston marginata）3龄幼虫的生物活性。结果表明，艾蒿和苦楝各溶剂提取物对油茶
尺蠖3龄幼虫均有一定的生物活性。在提取物浓度为120…g/L时，艾蒿乙醇提取物的拒食率和校正死亡率分别为
84.01%和85.00%；苦楝乙醇提取物的拒食作用最好，拒食率为81.77%，其乙酸乙酯提取物的触杀作用较强，校正
死亡率为80.00%。提取物的质量浓度对油茶尺蠖的触杀作用有显著影响。毒力回归分析表明，艾蒿乙醇提取物和
苦楝乙酸乙酯提取物的毒力较强，处理 48…h 后的LC50 分别为34.595…g/L和42.020…g/L。 |
| 英文摘要: |
| Bioactivity of the ethanol，petroleum ether and acetidin extracts from Artemisia argyi and Meliaazedarach against the 3th instar larvae of Biston marginata were tested by dipping leaves and dipping insect method inlaboratory. The results showed that the extracts of three solvents from A. argyi and M. azedarach had some bioactivitiesagainst the 3th instar larvae. When the concentration of extracts was 120 g/L，the antifeedant activity and the correctedmortality of the ethanol extracts from A. argyi were 84.01%，and 85.00%，respectively，the antifeedant activity of theethanol extracts from M. azedarach was higher with an antifeedant rate of 81.77%，the insecticidal activity of the acetidinextracts from M. azedarach was the highest with a corrected mortality of 80.00%. Further toxicity analysis showed thatthe insecticidal activities of ethanol extracts from A. argyi and acetidin extracts from M. azedarach were stronger，withLC50 value of 34.595 g/L and 42.020 g/L after 48 hours. |
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