World Journal of
Pharmaceutical and Life Sciences

KNOCKDOWN TIME AND LETHAL TIME ON GERMAN COCKROACHES (BLATTELLA GERMANICA L.) AGAINST DELTAMETHRIN 5% INSECTICIDE

Muhammad Rizki Saputra*, Resti Rahayu and Hasmiwati

ABSTRACT

German cockroaches are one of the household pests that are often found in Indonesia. German cockroach control generally uses insecticides such as deltamethrin. The absence of reports on the effectiveness of these insecticides in controlling German cockroaches in Indonesia, it is necessary to research the knockdown time 90% (KT90) and lethal time 90% (LT90) in German cockroaches from Bukittinggi (RMKN-BKT1) and Bandung (KRSA-BDG1). The results showed that 90% (KT90) German cockroach knockdown time field strains of RMKN-BKT1 and KRSA-BDG1 were 23,189 minutes and 20,103 minutes, while the VCRU-WHO standard strain was 14,578 minutes. Lethal time 90% (LT90) of German cockroaches in the field strains of RMKN-BKT1 and KRSA-BDG1 were 62,492 hours and 71,720 hours, while the standard VCRU-WHO strain was 59,045 hours. This study concludes that the German cockroach field strain has a longer paralysis and death time than the standard German cockroach strain. Thus, pest control management needs to increase monitoring and rotate insecticides.

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