| characteristics of malaria vector breeding habitats in sri lanka: relevance for environmental management. | in and around a village in the anuradhapura district of sri lanka anopheline larvae were sampled from july 1994 to april 1996 in all surface water bodies. samples positive for anopheles culicifacies, the established vector of malaria in sri lanka, and for an. barbirostris, an. vagus, and an. varuna, potential secondary vectors, were characterized by site, exposure to sunlight, substratum, turbidity of the water, presence of vegetation, and presence of fauna. availability of pools of stagnant wat ... | 1998 | 9740294 |
| food of larval anopheles culicifacies and anopheles varuna in a stream habitat in sri lanka. | no previous studies have been conducted on the natural food of larval anopheles culicifacies s.l. (the major malaria vector) and an. varuna (a secondary vector) in sri lanka. the present study analyzed the contents of guts dissected from larvae collected from pools in a natural stream-cum-irrigation conveyance channel in the upper yan oya watershed in the north central province of the country during august-september 1997 and july 1998. determinations of physicochemical and biological parameters ... | 2005 | 16506563 |
| multiple insecticide resistance mechanisms involving metabolic changes and insensitive target sites selected in anopheline vectors of malaria in sri lanka. | the current status of insecticide resistance and the underlying resistance mechanisms were studied in the major vector of malaria, anopheles culicifacies, and the secondary vector, anopheles subpictus in five districts (anuradhapura, kurunegala, moneragala, puttalam and trincomalee) of sri lanka. eight other anophelines, anopheles annularis, anopheles barbirostris, anopheles jamesii, anopheles nigerrimus, anopheles peditaeniatus, anopheles tessellatus, anopheles vagus and anopheles varuna from a ... | 2008 | 18755020 |