论文部分内容阅读
继发现昆虫保幼激素后,现在又发现了一种新的生物杀虫剂——早熟烯,它和保幼激素一样,都是利用促使昆虫的不正常生理变化,来使它失去生存和繁殖能力,但早熟烯的效果比保幼激素更佳。实验中发现,若将未成熟昆虫分泌保幼激索的咽侧体切除,使它不再分泌此种激素,昆虫就会过早变态,提前进入成熟期。这样处理过的成熟雌虫就会变成不
Following the discovery of insect juvenile hormone, now also found a new biological insecticide - precocious, which, like juvenile hormone, are used to promote the abnormal physiological changes of insects to make it lose its survival and reproduction Ability, but the effect of precocious better than juvenile hormone. Experiments found that if immature insects secreted juvenile excitatory excision of the pharyngeal side, it no longer secrete this hormone, the insect will premature metamorphosis, early into the maturity. Mature females that have been treated in this way will turn out to be no