Castro J A, Zerba E N, De Licastro S A, Picollo M I, Wood E J, Ruveda M A, De Moutier Aldao E M, Libertella R
Acta Physiol Lat Am. 1976;26(2):106-14.
Cuticular penetration of lipid soluble substances in Triatoma infestans is very poor (less than 1% in 24 hr), while the respiratory route is particularly efficient (28% in 5 min). Accordingly, several noxious gases killed the insect at short periods of time. CH3Br and SO2 were particularly effective and they also evidenced ovicide action. With the former compound this effect is also observed at low concentrations. The CH3Br hydrolysis products or its metabolites were not similarly effective, while other methylating agent, diazomethane, was very active. The irreversible binding of 14CH3Br to proteins and lipids of T. infestans, as well as the decrease in the sulfhydryl groups content of the proteins of the insect provoked by CH3Br suggest that this compound kills the insect because of its alkylating properties. The use of gaseous insecticides in the chemical control of T. infestans is discussed.
在侵扰锥猎蝽中，脂溶性物质的表皮穿透性很差（24小时内低于1%），而呼吸道途径则特别有效（5分钟内为28%）。因此，几种有害气体能在短时间内杀死这种昆虫。溴甲烷和二氧化硫特别有效，它们还表现出杀卵作用。对于前一种化合物，在低浓度下也能观察到这种效果。溴甲烷的水解产物或其代谢物则没有同样的效果，而另一种甲基化剂重氮甲烷则非常有效。14C标记的溴甲烷与侵扰锥猎蝽的蛋白质和脂质的不可逆结合，以及溴甲烷引起的昆虫蛋白质中巯基含量的减少，表明该化合物因其烷基化特性而杀死昆虫。本文还讨论了使用气态杀虫剂对侵扰锥猎蝽进行化学防治的问题。
