【摘要】 用气相色谱法对麦红吸浆虫Sitodiplosis mosellna(Gehin)成虫、麦穗幼虫、秋季滞育幼虫、冬季滞育幼虫和翌年春季活动幼虫保幼激素滴度进行了检测。结果显示,在麦红吸浆虫成虫和幼虫的不同阶段,都可检测到保幼激素Ⅲ的存在。比较而言,成虫保幼激素Ⅲ的滴度高于麦穗幼虫和秋季滞育幼虫,但明显低于冬季滞育幼虫和翌年出土幼虫。更多还原

【Abstract】 The titres of juvenile hormone Ⅲ(JH3) in adult,wheat-ear-larva,over-autumning-larva,over-wintering-larva and over-wintered larva of the wheat blossom midge,Sitodiplosis mosellana(Gehin) are detected by gas chromatography.Results showed that JHⅢ could be detected in both adult and larva of the wheat blossom midge.The JHⅢ titre in adult is higher than that in wheat-ear-larva and over-autumning-larva,but it is obviously lower than that in over-wintering-larva and over-wintered larva.A initial analysis on the phenomenon is given.更多还原