Vector Density And Resistance Status of Dengue Hemorrhagic Fever Mosquito (Aedes aegypti) Against Malathion in Manado City

Abstract

The success of DBD vector control depends on the vector susceptibility status of the insecticide used. Periodic monitoring of
susceptibility to insecticide vulnerability is important. The purpose of this research is to know the vector density and the susce ptibility
status of Dengue Hemorrhagic Mosquito (Ae.aegypti) to the malation in Manado City. the benefits of this study are expected t o
provide information on the vector density and the susceptibility status of dengue fever mosquitoes (Ae.aegypti) to mala thion in
Manado City so that it becomes the evaluation material of DHF control program in planning in order to suppress the increase o f DHF
case in Manado City. This study is an observational descriptive study to obtain an overview of vector density and in secticide
susceptibility status (malathion) in Manado city. The population in the study was the house and population of Ae.aegypti mosq uitoes
while the sample was a vector density of 100 houses. The results of the research The vector density is House Index (HI) = 25,
Container Index (CI) = 12,57 and Breteau Index = 23,82 all show medium density of larvae and test results of Ae.aegypti mosqu ito
susceptibility status using malathion 0 , 8% impregnated paper and WHO standard susceptibility test, that Ae.aegypti mosquito
susceptibility to malathion was done by counting the number of dead mosquitoes at one hour and 24 hours after exposure was st ated
to be resistant to malathion (mosquito mortality <80%). So immediately carry out the rotation of other insecticides by first testing the
insecticides to be used.