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棉铃虫齿唇姬蜂在京津地区每年发生7代,其中5代发生在棉田.以棉铃虫2、3代寄生率最高.田间出现三次寄生高峰,分别在6月中下旬,7月中下旬和8月上中旬.寄生率在33.3—66.7%之间.与棉铃虫危害棉花的关键期相吻合.各虫态历期受温度影响较大,低温能延长茧的羽化期和成虫寿命.该蜂羽化当日即可交尾产卵.羽化后2—3天为产卵盛期.雌蜂一生只交尾一次,雄蜂多次.单雌平均产子7—9.4头,最多19—21头.产子多少与蜂的寿命、寄主龄期及密度大小关系密切,对温度要求不太严格.在20—27℃范围内均能保持正常繁殖能力.雌雄性比在自然界中接近1:1,但孤雌生殖所产子代均为雄性.而交配后接虫繁殖子代雌性较多,所以室内接种繁殖子代性比差异较大.葫芦夜蛾的幼虫为齿唇姬蜂的中间寄主,寄生率比棉铃虫高.9月上旬仍达90%,是很好的繁蜂寄主.
Helicoverpa armigera was found in Beijing and Tianjin area for 7 generations per year, of which 5 generations occurred in cotton field.The parasitism rate of cotton bollworm was the highest in the second and third generations, with three parasitic peaks in the middle and late June and late July respectively And in the middle of August, the parasitism rate was between 33.3% and 66.7%, which was consistent with the critical period of cotton bollworm that endangered cotton.The temperature of each worm state was greatly influenced by temperature, and low temperature could prolong the eclosion period and adult longevity of cocoon. Bee feather day can be cross-ovipositing 2-3 days after feathering is the peak of spawning. Female bees only one mating life, the drone many times. The average single-female 7-9.4 heads, up to 19-21. The lifespan of the bee, the age of the host and the density of the host are closely related, and the temperature is not very strict, and the normal reproductive ability can be maintained within the range of 20-27 DEG C. The ratio of male to the female is close to 1: 1 in nature, but the parthenogenesis The progenies were all males, but there were more females after mating mating with the progeny, so there was a big difference between the progenies of the inoculation and multiplication in the house. Still up to 90% in early September, it is a good host for many bee bursts.