| 葛藤天敌紫茎甲生物学习性初步观察 |
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| 引用本文： | 李建丰 古德就 田明义. 葛藤天敌紫茎甲生物学习性初步观察[J]. 昆虫天敌, 2004, 26(1): 43-47 |
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| 作者姓名： | 李建丰 古德就 田明义 |
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| 作者单位： | [1]广东省植保总站,广州510500 [2]华南农业大学昆虫生态研究室，广州510642,广州510500 |
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| 基金项目： | 中美合作课题“昆虫对野葛控制作用研究”资助项目(1999-2000) |
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| 摘 要： | 对葛藤天敌紫茎甲的形态特征进行了观察，对紫茎甲的生活史、幼虫对葛藤的取食变化动态进行了研究，提出了紫茎甲对葛藤取食的分级标准，并且用于紫茎甲取食作用的评价。结果表明：紫茎甲一年发生1代；在8月份取食株率为80％，取食指数达33．2。另外，紫茎甲幼虫取食形成的虫瘿的大小(体积)与幼虫数呈显著的非线性相关。
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| 关 键 词： | 紫茎甲 形态特征 生物学特性 生物学习性 天敌 |
| 文章编号： | 1001-6155(2004)01-043-05 |
PRELIMINARY RESEARCH ON BIOLOGY OF PURPLE STEM BEETLE,SAGRA FEMORATA PURPVREA LICHTENSTEIN (COLEOPTERA:CHRYSOMELIDAE), A NATURAL ENEMY ON KUDZU |
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| LI Jianfeng GU Dejiu TIAN Mingyi. PRELIMINARY RESEARCH ON BIOLOGY OF PURPLE STEM BEETLE,SAGRA FEMORATA PURPVREA LICHTENSTEIN (COLEOPTERA:CHRYSOMELIDAE), A NATURAL ENEMY ON KUDZU[J]. Natural Enemies of Insects, 2004, 26(1): 43-47 |
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| Authors: | LI Jianfeng GU Dejiu TIAN Mingyi |
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| Abstract: | Morphological characteristics and seasonal cycles of purple stem beetle were observed, dynamic of larvae and classifying standard of the beetle feeding on kudzu was also studied. The beetle had one generation each year. The peak of infestation and index of feeding damage occurred in August. A significant correlation was found between gall size (volume) and the number of larvae in the gall (R = 0. 9783, P<0. 01). |
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| Keywords: | Kudzu Pueraria lobata Ohwi purple stem beetle Sagra femorata purpurea Lichten-stein morphology biology |
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