Abstract

ENGLISHStudy was conducted to evaluate the efficacy of Lambda-cyhalothrin (pyrethroid insecticide) against mosquito vectors of dengue haemorrhagic fever /DHF Aedes aegypti and urban lymphatic filariasis Culex quinquefasciatus. Four concentrations of active ingredient 3.75, 3.13, 2.50 and 1.88 g/ha (diluted in water) were evaluated for space spray, namely: thermal fog and Ultra Low Volume (ULV) applications. The study revealed that Lambda-cyhalothrin (concentrations of 3.75 and 3.13 g/ha) applied by using space spray methods, were effective in controlling dengue mosquito vector of Ae. aegypti (mortality 90.40-100.00%). Whereas, the concentration of 3.75 g/ha was effective against lymphatic filariasis mosquito vector of Cx.quinquefasciatus (mortality 90.00-100.00%), for both indoors and outdoors. It means that effective concentrations of lambdacyhalothrin insecticide for both space spray thermal fog and ULV methods application were more than three times of WHO recommendation 1.0 g/ha.INDONESIAPenelitian efikasi lambdasihalothrin (insektisida piretroid) telah dilakukan terhadap nyamuk vektor demam berdarah dengue/DBD Aedes aegypti dan filariasis perkotaan Culex quinquefasciatus. Empat konsentrasi bahan aktif telah dievaluasi 3.75, 3.13, 2.50 dan 1.88 g/ha (dilarutkan dalam air) dengan menggunakan metode aplikasi penyemprotan ruangan yaitu pengasapan (thermal fogging) dan pengkabutan (Ultra Low Volume/ULV). Hasil penelitian diketahui bahwa lambdasihalotrin (konsentrasi 3.75 dan 3.13 g/ha) aplikasi pengasapan dan pengkabutan, efektif membunuh nyamuk vektor DBD Ae. aegypti (kematian 90.4-100.00%). Sedangkan konsentrasi 3.75 g/ha, efektif membunuh nyamuk vektor filariasis perkotaan Cx. quinquefasciatus (kematian 90.00-100.00%) baik di dalam maupun di luar rumah. Hasil tersebut menunjukkan bahwa konsentrasi insektisida lambdasihalotrin aplikasi pengasapan maupun pengkabutan, adalah lebih dari tiga kali konsentrasi yang direkomendasikan oleh WHO 1.0 g/ha.