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| 拟澳洲赤眼蜂和短管赤眼蜂在菜芯地的扩散动态 | |
| 引用本文： | 何余容 吕利华 庞雄飞. 拟澳洲赤眼蜂和短管赤眼蜂在菜芯地的扩散动态[J]. 昆虫天敌, 2000, 22(3): 97-101 |
| 作者姓名： | 何余容 吕利华 庞雄飞 |
| 作者单位： | [1]华南农业大学昆虫生态研究室，广州510642 [2]广东省农科院植保所，广州510642 |
| 基金项目： | 国家自然科学基金资助项目(39870439和39870441) |
| 摘 要： | 在不同生长期的菜芯地释放赤眼蜂防治小菜蛾，当蜂量为2000头／点时，拟澳洲赤眼蜂在田间的有效扩散距离(寄生率大于60％)，苗期为3米，生长中期和收获期为4米。短管赤眼蜂在田间的有效扩散距离，苗期和生长中期为4米，收获期为5米，较拟澳洲赤眼蜂具有更强的扩散能力。 |
| 关 键 词： | 赤眼蜂 生长中期 收获期 苗期 田间 寄生率 澳洲 有效扩散 释放 动态 |
| 文章编号： | 1001-6155(2000)03-0097-05 |
DISPERSION CAPACITY OF TRICHOGRAMMA CONFUSUM AND T. PRETIOSUM IN THE FIELD OF CHINESE FLOWERING CABBAGE FOR CONTROL OF DBM |
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| HE Yurong LU Lihua PANG Xiongfei. DISPERSION CAPACITY OF TRICHOGRAMMA CONFUSUM AND T. PRETIOSUM IN THE FIELD OF CHINESE FLOWERING CABBAGE FOR CONTROL OF DBM[J]. Natural Enemies of Insects, 2000, 22(3): 97-101 | |
| Authors: | HE Yurong LU Lihua PANG Xiongfei |
| Affiliation: | HE Yurong 1 LU Lihua 2 PANG Xiongfei 1 |
| Abstract: | In this paper, the dispersion ability of Trichogramma confusum and T. pretiosum in the field of different development period of Chinese flowering cabbage was carried out in order to get accurate inundative field releasing number of Trichogramma for control of diamondback moth, Plutella xylostella. When the releasing number reaches 2000 in the release center, the effective dispersion distances (parasitism higher than 60%) of T. confusum in seedling, medium-size and harvest stage of Chinese flowering cabbage were 3,4,4 meters, respectively. T. pretiosum had a stronger flying ability than T. confusum, the effective dispersion distances in seedling, medium-size and harvest stage of Chinese flowering cabbage were 4,4,5 meters, respectively. |
| Keywords: | Trichogramma confusum T. pretiosum Plutella xylostella dispersion ability |
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