| 3种查耳酮类化合物对斜纹夜蛾的杀虫活性 |
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| 引用本文： | 张静,胡林峰,冯岗.3种查耳酮类化合物对斜纹夜蛾的杀虫活性[J].热带作物学报,2010,31(10):1821-1824. |
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| 作者姓名： | 张静 胡林峰 冯岗 |
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| 作者单位： | 1中国热带农业科学院环境与植物保护研究所 2农业部热带农林有害生物入侵监测与控制重点开放实验室;河南科技学院化学化工学院;1中国热带农业科学院环境与植物保护研究所 2农业部热带农林有害生物入侵监测与控制重点开放实验室 |
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| 基金项目： | 中国热带农业科学院环境与植物保护研究所重大科技专项，中央级公益性科研院所基本科研业务费专项，中国热带农业科学院博士科研启动基金 |
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| 摘 要： | 在室内测定了查耳酮、二氢查耳酮和4-甲氧基查耳酮3种查耳酮类似物对斜纹夜蛾的杀虫活性。结果表明,3种查耳酮类似物对斜纹夜蛾幼虫拒食活性大小依次为:4-甲氧基查耳酮查耳酮二氢查耳酮,处理后24 hAFC50值分别为0.452、0.524、1.072 mg/mL;对斜纹夜蛾幼虫还有一定的胃毒作用,在2 mg/mL的供试浓度下,处理后12 d的死亡率分别为67.78%、57.41%和53.33%;此外,查耳酮类化合物对斜纹夜蛾幼虫还具有一定抑制生长发育的作用,主要表现在幼虫体重、化蛹率和羽化率均显著低于对照。
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| 关 键 词： | 查耳酮 二氢查耳酮 4-甲氧基查耳酮 斜纹夜蛾 杀虫活性 |
Insecticidal Activities of Chalcone Derivatives Against Spodoptera litura |
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| Zhang Jing,Hu Linfeng and Feng Gang.Insecticidal Activities of Chalcone Derivatives Against Spodoptera litura[J].Chinese Journal of Tropical Crops,2010,31(10):1821-1824. |
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| Authors: | Zhang Jing Hu Linfeng and Feng Gang |
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| Institution: | 1 Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences,
2 Key Laboratory of Monitoring and Control of Tropical Agricultural and Forest Invasive Alien Pests,
Ministry of Agriculture;School of Chemistry & Chemical Engineering, Henan Institute of Science and Technology,;1 Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences,
2 Key Laboratory of Monitoring and Control of Tropical Agricultural and Forest Invasive Alien Pests,
Ministry of Agriculture |
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| Abstract: | The insecticidal activity of chalcone, dihydrochalcone and 4-methoxychalcone against Spodoptera litura were investigated in the laboratory. The results showed that the antifeedant activities of three chalcones against S. litura were in the tendency of 4-methoxychalcone>chalcone>dihydrochalcone, with the AFC50 values of three chalcones at exposure time of 24 h were 0.452, 0.524 and 1.072 mg/mL, respectively. The stomach toxicities experiment displayed that the lethal rates after treatment 12 days of three chalcones was 67.78%, 57.41% and 53.33%, respectively against the third instar larvae of S. litura at a concentration of 2 mg/mL. Moreover, the body weight, pupation rate of the treated S. litura larvae and the emergence rate of the treated adults were lower than those of the control. |
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| Keywords: | Chalcone Dihydrochalcone 4-methoxychalcone Spodoptera litura Insecticidal activity |
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