Validation of insecticide aerosol generated by smoke generator for German cockroach control

摘要

The aim of this article is to give prehmi-nary report on efficacy of smoke-generator Vulcan SG (former Ultimate super SG), containing pirimiphos-methyl and cypermethrin, against German cockroaches. The small scale experiments simulated semi-field conditions: cockroaches were exposed to smoke from pyrotechnic generators in plastic cubicles incorporated in experimental outdoor room-units. The airborne concentration of active ingredients - estimated by gas chromatography method - decreased significantlywithin 6-12 hours after preparation release. We found that the efficacy of the smoke-aerosol reached 100% cockroach mortality during the first 3 hours of exposure. During the consequent 6-12hours of exposure the cockroach trem or (knock-down) was high while mortality was low, when estimated 24 hour after exposure interruption.