Abstract
The aim of the study conducted from April to December 2022 was to assess theeffectiveness of Pesguard FG161, a commercial insecticide formulation from SumitomoChemical Co., Ltd, against field bed bugs. This emulsifiable concentrate (EC) formulationcombines two active ingredients, D-Tetramethrin and Cyphenothrin, and is recommendedfor indoor residual spraying. Populations of the bed bug Cimex lectularius collected inTrung Van commune, Nam Tu Liem district (Trung Van strain), Ha Noi, and in ThinhLang commune, Hoa Binh district, Hoa Binh province (Thinh Lang strain) were evaluatedusing the surface contact method. Exposure time was 4 hours, and the mortality of bedbugs in contact with the treated panel was recorded on a daily basis for up to 4 days, andthe residual bioefficacy of the product was evaluated after one day, seven days, and thirtydays of spraying. According to the study, Pesguard FG161 can effectively control fieldbed bugs, as evidenced by its high success rate in killing them (mortality were 100%)
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