trial of Bacillus thuringiensis H-14 for mosquito control

Bacillus thuringiensis H-14 was tried to see its efficacy as a larvicide. It showed good initial toxicity but no residual effect. After 36 to 48 hours it did not kill the larvae and is therefore not recommended as a larvicide against mosquitoes for a country like ours unless further research is conducted to create a monomolecular layer on water surface for retaining the bacilli on the surface or else if some new strain is developed which has got longer residual effect

Anopheline species of Islamabad/Rawalpindi area

Surveys were conducted during June 1986 to May, 1987 to determine the prevalent species of anopheline vectors in Islamabad/Rawalpindi area and its vicinities. Anopheles culicifacies Giles, An. fluviatilis James, An. sergenti An Stephensi liston, An. subpictus Grassi, An. gigas, An. superpictus Grassi, An. annularis Van der Wulp,An. nigerrimus Giles, An. pulcherrimus Theobald, An. maculatus Theobald An. lindesayi giles, An. splendidas Koidzumi, An lumesi Theobald and An. barbirostris were recorded from the study area