为了提高赤眼蜂防治松毛虫的效果,我们对林间收集的蜂种,进行了单个母蜂的选育。结果表明,这可明显提高赤眼蜂的寄生能力,并且可以减少目前赤眼蜂生产中普遍存在的过寄生现象。一、选育方法在松毛虫产卵后期,从林间采集已被赤眼蜂寄生的松毛虫卵块,在繁蜂室待蜂羽化后,从窗口尼龙纱上挑选健壮活泼的个体引入指形管内,每管一头,然后放入新鲜的柞蚕剖腹卵10粒。接蜂后第三天起,进行变温锻炼。待子蜂发育到蛹后期,已寄生的柞蚕卵壳变为灰白色时,除去未寄生的蚕卵。在大多数指形管内开始出蜂后,选出子蜂数 In order to improve the effect of Trichogramma on the prevention and control of Dendrolimus punctatus, we carried out the breeding of single bumble bee on the collected bees in the forest. The results show that this can significantly improve Trichogramma parasitic capacity, and can reduce the prevalence of Trichogramma production over-parasitism. First, the breeding method In the latter period of the spawning of the pine caterpillars, from the forest collecting Trichogramma eggs Trichocryptus parasites, bee beekeeping in the beehive after the window nylon yarn from the selection of robust and lively individuals into the finger tube , Each one, and then put the fresh tussah laparotomy eggs 10. The third day after beekeeping, change temperature training. When the bee develops into the late pupae, the tussah egg shell that has become parasitic turns grayish-white to remove the parasitized silkworm eggs. After most bees begin to show bees in the fingers, select the number of bees