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Articles by Nova Hariani
Total Records ( 2 ) for Nova Hariani
  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.
  Trisnowati Budi Ambarningrum , Lulu Lusianti Fitri , Edi Basuki , Kustiati Kustiati , Nova Hariani and Intan Ahmad
  Background and Objective: Glucose aversion in German cockroaches Blattella germanica L., which are exposed continuously to glucose-containing baits, is known as a rapid behavioral resistance phenomenon. This study was aimed to detect behavioral development of Glucose aversion in German cockroaches in Indonesia. Materials and Methods: Twenty one strains of German cockroaches collected from 12 provinces in Indonesia from the period of 2007-2011 were used in this study. Each of the collected strains was divided into 2 different groups, where the first one was subjected to three steps of selections, while the second one was unselected. The 1st step of selection was aimed to find individuals that responded negatively to glucose-containing agar. The selected individuals were then subjected to the next selection step i.e., exposure to glucose-containing agar and 0.03% fipronil. The 2nd step of selection was conducted in triplicates with 5 day intervals. The survivors of this step were then raised and designated as parental and filial-1 groups. The 3rd step of selection was exposures of the groups of parental, filial-1 and unselected to maxforce forte 0.05 gel. Results: The results showed that from 21 strains tested, there were 4 strains (JKT-a, JKT-b, BDG-b and PKU-b) to be potent to develop glucose aversion behavior. The highest tolerance to sugar-containing baits was shown by the JKT-b strain. Conclusion: This report resulted the first information on behavioral resistance mechanisms of German cockroaches to glucose in Indonesia that is important as a reference in planning German cockroaches control in Indonesia.
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