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应用生命表技术对荔蝽平腹小蜂Anastatus japonicus Ashmead不同地理种群以柞蚕卵为繁殖寄主的条件下的重要生物学指标和参数进行测定和比较,结果表明,越南种群的主要生殖力指标,包括净生殖力(R_0)、内禀增长率(r_m)、周限增长率(λ)、种群倍增时间(DT)、单雌产卵量、产卵前期和产卵历期均比广西、广东和海南种群的理想;4种群的雌蜂寿命、羽化率和雌性比率则没有显著差异。因此利用柞蚕卵作为中间寄主对越南种群进行大规模人工繁殖,具有较大的生物防治应用前景。
The vital biological indexes and parameters of Anastatus japonicus Ashmead from different geographic populations were studied by using the life table technique. The results showed that the main fecundity indicators of Vietnam population including Net fertility (R_0), intrinsic rate of increase (r_m), peri-cycle growth rate (λ), population doubling time (DT), single fecundity, pre-oviposition and oviposition were all higher than those in Guangxi, Guangdong and Hainan population ideal; 4 populations of female bee life, emergence rate and female ratio was not significantly different. Therefore, the use of tussah eggs as the intermediate host of large-scale artificial breeding of Vietnamese population, with greater prospects for the application of biological control.