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Articles by Marselina I. Tan
Total Records ( 1 ) for Marselina I. Tan
  Resti Rahayu , Intan Ahmad , Endang Sri Ratna , Marselina I. Tan and Nova Hariani
  Six strains of German cockroach, Blattella germanica, collected from three major cities in Indonesia which are Jakarta, Bandung and Surabaya were bio-assayed with topical application to monitor insecticide resistance to insecticides propoxur, permethrin and fipronil. In general, compared with VCRU susceptible strain as the standard, all cockroach strains were resistant to all insecticides tested, with Resistance Ratios ranging from 2.11-1013.17 fold. Majority of strains exhibited very high resistance (RR50>50) to permethrin; this study also revealed the existence of extremely high resistance to permethrin (RR50 of 1013.17 fold) in HHB-JKT strain. Resistance levels to both propoxur and fipronil is vary (RR50 ranging from 2.11-44.72 fold). But, in general, the field strains are still susceptible to fipronil. This study is the second report of German cockroach resistance to insecticides in Indonesia which suggest the importance of continued monitoring of insecticides susceptibility for controlling the German cockroach, B. germanica. In addition, the findings can be used in formulating potential strategies for cockroach resistance management.
 
 
 
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