平腹小蜂对荔枝蝽象自然种群的控制作用  

Control Efficacy of Anastatus japonicus on the Natural Population of Tessaratoma papillosa

作　　者：冼继东[1] 梁广文[1] 陈驹坚[1] 黄小鹄[1] 

机构地区：[1]华南农业大学昆虫生态研究室,广东广州510642

出　　处：《华南农业大学学报》2008年第4期47-50,共4页Journal of South China Agricultural University

基　　金：国家自然科学基金(30471169);华南农业大学校长基金(4200-K07315)

摘　　要：应用作用因子生命表方法和种群干扰作用控制指数(IIPC),评价了在有机荔枝园区中荔枝蝽象卵寄生天敌平腹小蜂Anastatus japonicus对荔枝蝽象Tessaratoma papillosa自然种群的控制效果.结果表明,在放蜂区和对照区中,平腹小蜂的寄生率分别为82.57%和9.23%,荔枝蝽象种群趋势指数分别为0.97和11.55,处理区的干扰作用控制指数为0.084,即平腹小蜂对荔枝蝽象的控制效果达91.6%.可见,在有机荔枝园中,单独释放平腹小蜂完全可达到控制荔枝蝽象种群数量的目的.By means of observation in the laboratory and the systematic investigation in the field, the life table and interference index of population control （IIPC） were used to evaluate the control efficacy of Anastatus japonicus on the natural population of Tessaratoma papillosa. The result showed that the parasite rate of A. japonicus in treatment and CK were 82. 57% and 9.23% , respectively. The index of population development trend （I） of T. papillosa Drury were O. 97 and 11.55, respectively. It was showed that the interference index of population control（IIPC） was O. 084 in treatment, i. e. the parasite of A. japonicus could reduce the population of next generation of T. papillosa by 91.6%. In the organic litchi orchard, controlling the population of T. papillosa effectively by releasing A. japonicus separately was suggested .

关 键 词：平腹小蜂 荔枝蝽象 种群 生态控制 

分 类 号：Q968.1[生物学—昆虫学]