Insecticide susceptibility status of Anopheles koliensis (diptera: culicidae) in northeastern Irian Jaya, Indonesia

• Published in: Southeast Asian journal of tropical medicine and public health Vol. 24; no. 2; pp. 357 - 362
• Main Authors: BANGS, M. J, ANNIS, B. A, BAHANG, Z. H, HAMZAH, N, ARBANI, P. R
• Format: Journal Article
• Language: English
• Published: Bangkok Southeast Asian Ministers of Education Organization, Regional Tropical Medicine and Public Health Network 01-06-1993
• Subjects: Animals; Anopheles; Biological and medical sciences; Culex; DDT - pharmacology; Female; Fenitrothion - pharmacology; Fundamental and applied biological sciences. Psychology; Indonesia; Insecticide Resistance; Malathion - pharmacology; Medically important nuisances and vectors, pests of stored products and materials: population survey and control; Tropical medicine; Vectors. Intermediate hosts; Asia; Indonesia; Irian Jaya; Protozoal disease; Insecticide; Malaria; Insecta; Pesticides; Malathion; Parasitosis; Infection; Sanitary control; Sensitivity resistance; DDT; Arthropoda; Parasiticid; Culicidae; Organophosphorus compounds; Invertebrata; Vector; Diptera
• ISSN: 0125-1562

Anopheles koliensis, an important malaria vector in the interior region of Irian Jaya, Indonesia, was evaluated for susceptibility to three different insecticide compounds using the standard World Health Organization diagnostic test kit and pretreated impregnated papers. A series of tests were conducted in Arso PIR I, a transmigrant settlement 60 km south of Jayapura, from January 1988 to May 1989. All compounds were tested at the recommended diagnostic dosage and exposure time. An. koliensis were susceptible to 1.0% fenitrothion at two hour exposure (N = 358) and 5.0% malathion at one hour exposure (N = 371) after the 24-hour holding period. Significant resistance to DDT was observed in both the An. koliensis and Culex quinquefasciatus populations. Approximately 30% of the An. koliensis population (N = 468) was resistant to 4% DDT at both one and two hour exposures. These findings indicate that routine use of DDT in Arso PIR I for indoor residual house spraying may be of limited effectiveness, in part, because of physiological resistance. However, use of an alternative insecticide will be more expensive and might prove equally ineffective because of the exophilic behavior of the species. This is the first confirmed report from repeated observations of DDT resistance in An. koliensis from Indonesia.