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辐射绝育的昆虫,由于性的活跃性和交尾时输精能力的减弱以及寿命的缩短,其竞争力低于自然种群的雄虫。因此,昆虫化学绝育比辐射绝育好。 15年内,化学绝育经过了相当长的发展过程。起初,把绝育剂加入昆虫食料使昆虫绝育。此法的效果不大,因为有时绝育是暂短的,很快又恢复了繁殖力,做起来也很费力,饲喂化学绝育剂需要1-5天,绝育效果又以加入量的多少而不同。后来,出现了接触绝育法。利用此法,使昆虫接触涂有绝育剂的玻璃片或其它物体
Radiation-insecticidal insects, which are less competitive than natural populations, are insecure because of their sexual activity and diminished fertility at mating, as well as shortened life expectancy. Therefore, insecticidal chemical sterilization is better than radiation sterilization. Within 15 years, chemical sterilization has gone through quite a long process of development. Initially, sterilizing insects by adding a sterilizing agent to insect foodstuffs. The effect of this method is not great, because sometimes sterilization is short, and soon restored fertility, it is also very laborious to do, feeding chemical sterilant need 1-5 days, the sterilization effect in accordance with the amount of added and different . Later, the emergence of contact sterilization method. Using this method, insects are exposed to glass sheets coated with a sterilizing agent or other objects