论文部分内容阅读
采用硫酸纸、塑料布、鲜玉米叶、蜡纸作为玉米螟成虫的产卵基质,得到4种不同的玉米螟卵块。在气候箱内对大、小卵繁殖的4个品系赤眼蜂进行寄生玉米螟卵块测试。结果表明:4个品系赤眼蜂对4种不同基质玉米螟卵的寄生具有选择性,不同品系赤眼蜂对同一种玉米螟卵的寄生特性存在差异,小卵赤眼蜂的寄生特性优于大卵赤眼蜂,当蜂种同为“大卵”或同为“小卵”时,螟黄赤眼蜂的卵块寄生率优于松毛虫赤眼蜂,而松毛虫赤眼蜂的单雌寄生卵粒数优于螟黄赤眼蜂;研究还发现同一赤眼蜂品系在玉米叶卵上的寄生效果最好,其次是塑料布卵,很少在蜡纸卵上寄生,这一结果为今后更好地选育、应用,以及效果评价赤眼蜂提供参考。
Using sulfuric acid paper, plastic sheeting, fresh corn leaf, wax paper as the oviposition matrix of the corn borer adults, obtained four different corn borer eggs. In the climate chamber of the big and small egg breeding Trichogramma quadriceps eggs test block. The results showed that four strains of Trichogramma were selective for the parasitism of four different kinds of maize borer eggs, and the parasitism of Trichogramma species was different from that of Trichogramma ostriniae. The parasitism was superior to Egg Trichogramma was superior to that of Trichogramma trichocalypse when the same bee species were “big egg” or “ovum” The number of single female parasitoids in bees was better than that in Trichogramma ostriniae. The study also found that the same Trichogramma strain had the best parasitism on maize leaf eggs, followed by plastic cloth eggs, which rarely parasitized the wax paper eggs A result provides a reference for the future breeding, application and evaluation of Trichogramma.