| effect of fenthion treatment on larval densities of insecticide-resistant culex quinquefasciatus in an urban area of sri lanka. | in sri lanka the national anti-filaria campaign (afc) has routinely employed fenthion since 1974 for larvicidal control of culex quinquefasciatus, the vector of bancroftian filariasis in urban areas, where this mosquito breeds prolifically in polluted waters. during 1994 the efficacy of afc fenthion treatment against organophosphate-resistant cx quinquefasciatus was investigated at dehiwela, near colombo. the afc target rate of fenthion application was 1 mg a.i./l, but the actual concentrations ... | 1996 | 8887341 |