【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.更多还原

【Abstract】 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 0.97 and 11.55,respectively.It was showed that the interference index of population control(IIPC) was 0.084 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.更多还原