Abstract
INSECTICIDE RESISTANCE IN Blattella germanica L. (DICTYOPTERA: BLATTELLIDAE ) FROM BUKITTINGGI AND PALEMBANG AGAINST PROPOXUR
Tito Nurseha, Resti Rahayu* and Hasmiwati
ABSTRACT
German cockroaches (Blattella germanica L.) are household pest known to be resistant to chemical insecticides. Resistance to propoxur insecticides causes the controlling to be more difficult. The aim of this study was to determine the resistance status of German cockroaches against propoxur. The method that used in this study was Topical Application Test. The German cockroaches used were collected from the cities of Bukittinggi and Palembang, German cockroaches laboratories populations were WHO standards. The results showed that B. germanica RMKN-BKT and PLZ-PLM population had been resistant to propoxur. The resistance ratio (RR50) for each population was 1.42 fold for RMKN-BKT and 1.59 fold for PLZ-PLM. The conclusion of this study is the resistance status of B. germanica RMKN-BKT and PLZ-PLM population classified as low resistance. Monitoring the repeated use of insecticides in pest management is necessary so that the status of resistance does not increase.
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