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利用大豆粉、玉米粉、麦胚和鲜茭白等成分配制了大螟Sesamia inferens(Walker)的半合成人工饲料,利用该饲料配方,发展了大螟的长期、继代饲养技术,即初孵-2日龄幼虫在茭白上饲养,3日龄-化蛹在人工饲料上饲养。利用该方法连续饲养大螟3代,幼虫的发育历期、蛹重、幼虫存活率、化蛹率、羽化率、卵孵化率和单雌产卵量等生活史参数与在天然饲料茭白上饲养的大螟相比,二者没有任何显著差异。而且利用该方法饲养,成本低、省工省力,能显著减少病原菌的感染。这说明该饲养技术适于大螟种群的长期、继代饲养。
The semisynthetic artificial feed of Sesamia inferens (Walker) was prepared by using soybean flour, corn flour, wheat germ and fresh slender white, and the long-term and subsequent feeding techniques of Sesamia inferer were developed. 2-day-old larvae were fed on the catfish, and 3-day-old pupae were fed on artificial diet. By using this method, the life history parameters of larvae such as larvae developmental duration, pupal weight, larval survival, pupation rate, emergence rate, egg hatching rate and ovipositing were fed continuously on the 3rd generation of Sesamia inferens Compared with the Sesamia inferens, the two did not make any significant difference. And the method of feeding, low cost, labor saving, can significantly reduce the infection of pathogens. This shows that the feeding technique is suitable for the long-term, Siphonoptera population breeding.