【摘要】 利用体长为2.0~3.0 cm的松墨天牛幼虫繁育管氏肿腿蜂和川硬皮肿腿蜂,分别按蜂虫比2∶1,3∶1和4∶1接蜂.测定感染率、寄主干瘪率、寄生率、寄生成功率、产卵量和出蜂量等指标.结果表明:蜂虫比3∶1处理组在繁育2种肿腿蜂时各项指标均最好,2种肿腿蜂在3个处理组的繁蜂效益产出比分别为1.00∶1.98∶1.36和1.00∶2.79∶1.49,故3∶1的蜂虫比是比较适宜的.更多还原

【Abstract】 Scleroderma guani and Scleroderma sichuanensis were bred by utilizing 2.0 cm to 3.0 cm long larvae of Monochamus alternatus.The inoculation was conducted with three parasitoid-host ratios(2∶1,3∶1 and 4∶1),and the indexes such as infecting rate,shriveled rate of host,parasitical rate,successful parasitical rate,quantity of oviposition and the number of bethylid filial generation were determined.The results showed that 3∶1 parasitoid-host ratio was the best choice for breeding these two species of ethylids regarding to each index mentioned above.The breeding efficiency ratios of the two bethylid species were 1.00∶1.98∶1.36 and 1.00∶2.79∶1.49 respectively.So the parasitoid-host ratio of 3∶1 was thought to be the optimal ratio among the three treatments.更多还原