利用生命表评价天敌对松突圆蚧的控制作用  

Assessment of control effectiveness of natural enemies on Hemiberlesia pitysophila by life table

作　　者：王竹红[1] 黄建[1] 张林生[1] 吴擢庆[1] 王晓真[1] 

机构地区：[1]福建农林大学生物农药与化学生物学教育部重点实验室,福建福州350002

出　　处：《福建林学院学报》2007年第3期248-252,共5页Journal of Fujian College of Forestry

基　　金：福建省自然科学基金资助项目(B0410020);福建省科技厅重大专项前期研究项目(2005NZ1004);福建省青年科技人才创新基金资助项目(2006F3017)

摘　　要：组建松突圆蚧(Hemiberlesia pitysophila Takagi)自然种群生命表,采用种群趋势指数(I)、干扰作用控制指数(IIPC)和排除作用控制指数(EIPC)分析天敌对松突圆蚧的控制作用。生物防治区[释放花角蚜小蜂(Coccobius azumai Tachikawa)]松突圆蚧第2、3代种群趋势指数分别为3.739 3和2.109 0,对照区(未释放花角蚜小蜂)分别为8.078 6和11.371 4。生物防治区松突圆蚧第2、3代自然种群增长数量分别为对照区的46.28%和18.55%。采用EIPC分析,生物防治区寄生蜂寄生的EIPC显著大于捕食、菌类寄生及其它等因子的,说明寄生蜂的寄生是控制松突圆蚧种群动态的重要因子。Natural population life table of Hemiberlesia pitysophila Takagi was constructed and the effectiveness of natural enemies was analysised on index of population trend （I）, interference index of population control （IIPC） and exclusive index population control （EIPC）. The results showed that index of population trend of the second generation and the third generation of H. pitysophila were 3. 739 3 and 2. 109 0 respectively in biocontrol area, while 8. 078 6 and 11. 371 4 respectively in CK area The quantity of the second generation and the third generation of H. pitysophila in biocontrol area decreased to 46.28 percent and 18. 55 percent of CK area respectively. In biocontrol area, the EIPC of parasitoids were bigger than that of predators and fungus, so the parasitoids are the dominant factors affecting the population of H. pitysophila.

关 键 词：松突圆蚧 天敌 生命表 控制作用 

分 类 号：S476.3[农业科学—农业昆虫与害虫防治]