Bionomics of Anopheles sundaicus and Other Anopheles associated with Malaria in Coastal Areas of Bali, Indonesia

Soekirno, Mardjan (2002) Bionomics of Anopheles sundaicus and Other Anopheles associated with Malaria in Coastal Areas of Bali, Indonesia. Project Report. Pusat Penelitian dan Pengembangan Ekologi Kesehatan.

Abstract

In two villages on the North coast of the Island of Bali, Indonesia, among the known malaria vectors, Anopheles sundaicus predominated in outdoor catches, but was completely absent fromBionomics of Anopheles sundaicus and other Anopheles associated with malaria in coastal areas of Bali, Indonesia indoor nocturnal landing Bionomics of Anopheles sundaicus and other Anopheles associated with malaria in coastal areas of Bali, Indonesiaatches. This species was also most prevalent in lagoons, especially during the dry season. In morning indoor resting catches, as well as in cattle shelters, An. subpictus outnumbered all other species in two coastal villages and one rice-growing village. In the inland village, about 3 km from brackish water impoundments, neither An. sundaicus nor malaria was recorded, but An. aconitus occurred throughout the year, along with An. subpictus. However, monthly malaria rates were high in villages in the coastal areas in the proximity of rice-fields where the three malaria vectors were concurrently present throughout the year. In the dry season, high adult and larval densities of both An. sundaicus and An. subpictus usually began to decline in June to July after DDT house spraying, but further reduction depended upon weekly larviciding with diesel oil. DDT residual spraying toward the end of the rainy season appears to be more effective if intensive weekly larviciding with diesel oil is concurrently carried out.

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