不同蜂蚜比的蜂蚜同接对规模化繁殖烟蚜茧蜂的影响

以漂浮育苗为载体，研究了不同蜂蚜比的蜂蚜同接后烟蚜茧蜂的繁殖效果。结果表明，蜂蚜比为1：100的蜂蚜作为蜂蚜同接的蚜源和蜂源，其初始寄生率为52.28%，按4头/株同接饲养25 d后，累计繁殖僵蚜量为261.66头/株，其寄生率高达97.3%，繁蜂效果最好。其次是蜂蚜比为1：200，再次是蜂蚜比为1：50。蜂蚜同接技术适用于烟蚜茧蜂的规模化繁殖，其繁蜂效果均优于先繁蜂再繁蚜的分接繁殖技术，在实际运用中蜂蚜比控制在1:100~1:200.

Effects of Different Wasp Aphid Ratio on Mass Rearing of Aphidius Gifuensis (Ashmead) by Simultaneous Inoculating Technology

Floating seedlings were used as experimental carriers, the effects of different wasp aphid ratio on the reproduction of A. gifuensis by simultaneous inoculating technology (SIT) were studied. The results showed that the reproductive effect of A. gifuensis was the best when the wasp aphid ratio was 1:100. Under this ratio, the initial parasitic rate of the parasitic aphids was 52.28%. Inoculated 4 parasitic aphids per plant, the amount of aphid mummies reached up to 261.66 per plant and the parasitic rate up to 97.3% after 25 days of rearing. The second best reproductive effect of A. gifuensis was observed when the ratio was 1:200. The third best reproductive effect was observed when the ratio was 1:50. The SIT is suitable for the mass rearing of A. gifuensis, and its effect is better than that of asynchronous inoculating technology (AIT), therefore we suggest that the best wasp aphid ratio range of simultaneous inoculation is 1:100 to 1:200.