In an area of India where the main rural malaria vector, Anopheles culicifacies Giles, has developed triple resistance to DDT, HCH, and malathion sprayed indoors in antimalaria program, bifenthrin (10% wettable powder) was evaluated in a randomized house-scale trial between July 1999 and March 2000. Entomological impact of four serial doses of bifenthrin (25, 50, 100, and 200 mg/m2) sprayed in ...

Malaria and other mosquito borne diseases are common in Kolkata, India. Among the 34 species of mosquitoes recorded from Kolkata, 13 are anophelines, of that Anopheles annularis Van der Wulp, An. culicifacies Giles, and An. stephensi Liston are established vectors of malaria1–3. The abundance of these vector mosquitoes varies with the season and available habitats2–4. Mobility of human hosts be...

BACKGROUND AND OBJECTIVES The main rural malaria vector Anopheles culicifacies has developed resistance to dichloro diphenyl trichloroethane (DDT), hexachloro cyclo hexane (HCH) and malathion in the state of Haryana in northern India. An alternative synthetic pyrethroid insecticide bifenthrin was therefore evaluated on mosquito nets against anopheline and culicine mosquitoes, in two villages Ja...

BACKGROUND In Sri Lanka, the major malaria vector Anopheles culicifacies breeds in pools formed in streams and river beds and it is likely that people living close to such breeding sites are at higher risk of malaria than people living further away. This study was done to quantify the importance of house location relative to vector breeding sites for the occurrence of malaria in order to assess...

Cytogenetic observations on an extensive material of the Anopheles culicifacies complex from the Thenpennai river area, Tamil N adu, South India show that the populations are made up of four cytologically distinct species. Three of these, labeled A, B and C have already been described. A fourth .one, monomorphic for the inversion arrangement + a + b in the X chromosome and il + hI in the second...

BACKGROUND & OBJECTIVES Under the national antimalaria programme DDT was introduced in early 1950s for vector control and later hexachloro cyclohexane (HCH) followed by malathion and recently synthetic pyrethroids in 1990s to manage the insecticide resistance in Anopheles culicifacies. Subsequent replacement led to development of multiple resistances in An. culicifacies in Surat district in Guj...

BACKGROUND & OBJECTIVES Anopheles culicifacies Giles, the major malaria vector in Sri Lanka, exists as a species complex comprising two sympatric sibling species--species B and E. Species E is reported to be the major vector of Plasmodium vivax and P. falciparum parasites in Sri Lanka, whilst species B is a poor or nonvector as in India. Knowledge of the breeding habits of the two sibling speci...

b a ckground: anoph eles culicifacies, a major malarial vector has been recognized as a complex of five sibling species, a, b, c, d and e. these sibling species exhibit varied vectorial capacity, host specificity and susceptibility to malarial parasites/ insecticides. in this study, a pcr assay developed earlier for distinguishing the five individual species was validated on samples of a n . cu...