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蝶蛹金小蜂寄生被大菜粉蝶颗粒体病毒(PbGV)严重感染的菜粉蝶蛹后,出蜂数、羽化率和性比分别由对照组的22.3头/蛹、99.8％和92.1％,下降至5.7头/蛹、51.6％和79.7％。由这些蛹育出的金小蜂雌蜂,存活期缩短、产仔数和寄生蛹数明显减少,但是其子代的发育历期、羽化率和性比,则不受影响。 PbGV包涵体直接被蝶蛹金小蜂成虫取食后,能显著延长其寿命,估计该病毒包涵体对金小蜂可能有一定的营养功能。蝶蛹金小蜂的寄生,可使带毒寄主蛹中PbGV包涵体含量下降25.2％。金小蜂雌蜂在带毒菜粉蝶蛹中产过卵后,部分个体能在随后的产卵活动中将病毒传给健康寄主,并引起发病。根据本文结果,作者认为:在菜粉蝶的生物防治中,只要掌握好病毒的施用时期,PbGV与蝶蛹金小蜂之间的关系,是可以协调的。
The number of bees, the emergence rate and the sexual ratio of parasitoids were significantly decreased from 22.3 / pups, 99.8% and 92.1% in the control group, respectively, to the parasitoid parasitoid Papilionidae infected by PbGV 5.7 heads / pupa, 51.6% and 79.7%. The female wasps that were born from these pupae had shorter survival period, fewer litter size and parasitic pupae, but their offspring’s developmental history, emergence rate and sex ratio were not affected. The inclusion body of PbGV was directly fed on the adults of Chrysalis pupalis, which could significantly prolong its life expectancy. It is estimated that the inclusion body of PbGV may have certain nutrition function to Golden bee. Parasitoid pupal parasitoids, pupae can bring poison host PbGV inclusion body content decreased by 25.2%. After the golden honey bee had ovipositated in the venomous cabbage pupae, some individuals could pass the virus to the healthy host in the subsequent spawning activity and cause the disease. According to the results of this article, the authors think: In the biological control of cabbage butterfly, as long as the virus is well controlled, the relationship between PbGV and the pupal golden bee can be coordinated.