[The pilot project results of applications of the biolarvicide Bacillus sphaericus 2362 on mosquito breeding grounds of the town of Santa Cruz del Norte (La Habana Province)]. / Resultados de las aplicaciones en pilotaje del biolarvicida Bacillus sphaericus 2362 en criaderos de mosquitos del municipio Santa Cruz del Norte (provincia La Habana).

The effectiveness of the Bacillus sphaericus strain 2362 in liquid formulation, at a 10 ml/m2 dose, was tested in 157 breeding sites of Culex quinquefasciatus mosquitos, 2 breeding sites of Culex quinquefasciatus and Anopheles albimanus and 1 breeding site of Aedes taeniorhynchus, consisting of 1 river, 2 oxidation ponds, 1 pond, 4 dams, 2 microdams and 150 pits. The results reached with the application of 1800 1 of biolarvicide show its effectiveness. Within 24 hours of treatment, mortality rates were 100%, in a wide range of ecological conditions, its permanence up to 5 months in breeding sites without stream and innocuousness for other hydrobionts. DPGs in humans, having shown considerable reductions, confirm the advantages and potentialities of using this method under tropical conditions.