Roslavtseva S A, Eremina O Iu, Pereguda T A
Med Parazitol (Mosk). 1989 Jan-Feb(1):48-50.
Insecticidal and knock-down effects of eight pyrethroids, belonging to 2 types as to their chemical structure and specific action towards the nervous system, on the domestic flies' and German cockroaches' imago were assessed comparatively. Pyrethroids of the 2nd type, especially deltametrine, proved to be more effective against domestic flies as well as German cockroaches. Activity of the pyrethroids of the 1st type featured rapid knock-down effect and was practically independent from varying concentrations. The knock-down was reversible even at high concentrations. In case of the 2nd type of pyrethroids, the knock-down effect was concentration-dependent. Domestic flies, on the whole, were more sensitive to the effect of pyrethroids of the 1st type. The use of pyrethroids of the 2nd type against nonflying sinathropic insects would be advisable because they produce a higher insecticidal effect as well as irreversible knock-down.
比较评估了8种拟除虫菊酯对家蝇和德国小蠊成虫的杀虫及击倒作用，这8种拟除虫菊酯在化学结构和对神经系统的特定作用方面分为2类。结果表明，第2类拟除虫菊酯，尤其是溴氰菊酯，对家蝇和德国小蠊更有效。第1类拟除虫菊酯的活性特点是击倒作用迅速，且实际上与浓度变化无关。即使在高浓度下，击倒也是可逆的。对于第2类拟除虫菊酯，击倒作用取决于浓度。总体而言，家蝇对第1类拟除虫菊酯的作用更敏感。建议使用第2类拟除虫菊酯防治非飞行性嗜人昆虫，因为它们具有更高的杀虫效果以及不可逆的击倒作用。
