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采用电子加速器产生电子束辐照处理嗜虫书虱Liposcelis entomophila(Enderlein),分别以0、50、100、200、300、400、500、1000Gy的剂量处理成虫和若虫,观察受辐照后的存活情况和成虫的繁殖情况;以0、25、50、100、200、300、400、500Gy的剂量辐照卵,观察受辐照后卵的孵化情况。结果表明:经50Gy及以上剂量辐照后嗜虫书虱的卵不能孵化,也不能存活;在300Gy及其以上剂量经过不到8周的时间后成虫和若虫都不能存活,且在300、400、500、1000Gy的剂量范围内,嗜虫书虱成虫和若虫受辐照后的剂量越大,存活率降低幅度越大。嗜虫书虱各虫态对电子束辐照的敏感性由高至低依次为卵、若虫、成虫;经300Gy辐照后的成虫和若虫分别在8周和6周内完全死亡,300Gy的剂量可作为电子束有效防治嗜虫书虱的参考剂量。所有50Gy以上剂量下都可明显降低此种害虫的繁殖力,300Gy以上剂量的处理可导致试虫零产卵。
Liposcelis entomophila (Enderlein) was treated with an electron accelerator for electron beam irradiation. Adult and nymphs were treated with 0, 50, 100, 200, 300, 400, 500 and 1000Gy doses respectively to observe the survival after irradiation Situation and reproduction of adults; eggs were irradiated with doses of 0, 25, 50, 100, 200, 300, 400 and 500 Gy to observe the hatching of irradiated eggs. The results showed that the eggs of B. tabaci did not hatch or survive after irradiation with 50Gy and above. After 300Gy and above, the eggs and the nymphs could not survive after less than 8 weeks, , The dose range of 500,1000Gy, Larvae lice adults and nymphs after irradiation doses, the greater the rate of decline in survival. The sensitivity of electron beam irradiation to insects and tick louse were in the order of eggs, nymphs and adults. The adults and nymphs irradiated by 300Gy died completely within 8 weeks and 6 weeks, respectively. The dose of 300 Gy It can be used as the reference dose of electron beam to effectively control flies lice. All of the above 50Gy doses can significantly reduce the fecundity of this pest, 300Gy above treatment can lead to zero spawning test insects.