| 川楝素对斜纹夜蛾幼虫取食行为的影响 |
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| 引用本文： | 李云寿,邹华英,胡萃,赵善欢.川楝素对斜纹夜蛾幼虫取食行为的影响[J].华东昆虫学报,1999,8(2):99-102. |
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| 作者姓名： | 李云寿 邹华英 胡萃 赵善欢 |
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| 作者单位： | [1]云南省农业科学院生物技术研究所，昆明650223 [2]浙江农业大学植物保护系，杭州310029 [3]华南农业大学植物保护系，广州510642 |
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| 基金项目： | 云南省中青年学术和技术带头人培养经费资助 |
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| 摘 要： | 斜纹夜蛾5龄幼虫的取食活动是非连续进行的。在每两次取食活动之间存在一个取食间间隔．在每次取食活动期间，也存在一非常短暂的取食内间隔。经川楝素处理后的斜纹夜蛾5龄幼虫．其21小时内发生的取食活动和取食间间隔的次数减少．平均每次取食活动和取食间间隔持续的时间延长；可是在每次取食活动中，用于取食的时间明显减少。这是因为．取食内间隔的次数增加了．取食内间隔的时间也延长了。所有上述指标，处理虫与对照之间均存在着显著或极显著的差异。
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| 关 键 词： | 取食行为 斜纹夜蛾 幼虫 川楝素 次数 发生 延长 间隔 活动 |
Effect of toosendanin on larva feeding behavior of tobacco cutworm[Spodoptera litura (Fabricius)] |
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| Li Yunshou Zou Huaying Hu Cui Zhao Shanhuan Biotechnology Research Institute,Yunnan Academy of Agricultural Sciences,Kunming.Effect of toosendanin on larva feeding behavior of tobacco cutworm[Spodoptera litura (Fabricius)][J].Entomological Journal of East China,1999,8(2):99-102. |
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| Authors: | Li Yunshou Zou Huaying Hu Cui Zhao Shanhuan Biotechnology Research Institute Yunnan Academy of Agricultural Sciences Kunming |
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| Institution: | Li Yunshou 1 Zou Huaying 1 Hu Cui 2 Zhao Shanhuan 3 1 Biotechnology Research Institute,Yunnan Academy of Agricultural Sciences,Kunming 650223, 2 Department of Plant Protection,Zhejiang Agricultural University,Hangzhou 3100 |
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| Abstract: | Feeding activities of the 5th instar larva of tobacco cutworm Spodoptera litura (Fabricius)]were shown to occur in discrete boults (or meals). There was an inter-feeding gap between every two feeding boults, and a very short inter-feeding gap in each boult. The 5th instar larvae sprayed with toosendanin in this experiment, compared with the untreated larvae, had the decreaced, number of feeding bouts and inter-feeding gaps , but the prolonged. length of feeding boults and inter-feeding gaps. However, the eating time in a meal is shortened because the number of inter-feeding gaps increased and the inter-feeding gaps prolonged. All the above-mentioned feeding behavior indices of the treated larvae were significantly different from those untreated. |
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| Keywords: | Spodoptera litura larvae toosendanin antifeedant feeding behavior |
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