Biological controllers for the reduction of aedic indices

Huarcaya M.F.T.; Castillo C.A.T.; Antonio M.N.; Rodriguez M.N.C. · Boletin de Malariologia y Salud Ambiental (2022) · DOI: 10.52808/bmsa.7e6.625.011

Resumen

In the absence of effective vaccines for arboviruses transmitted by the vector A. aegypti and resistance to insecticides, it is necessary to look for alternatives, where biological control stands out with the use of the microbiological larvicide Bacillus thuringiensis var. israelensis (Bti). As an objective, it was proposed to determine the aedic indices and the use of Bacillus thuringiensis israelensis as a biological controller of Aedes aegypti in the town of Huánuco, Peru during the second half of 2019. The research was experimental cross-sectional with a sample of 263 homes distributed in five blocks. As an instrument, the observation and reporting of records was used through the inspection of each dwelling in two moments, initial and final, separated by a period of 90 days. For data analysis, descriptive statistics were used through Epidat 3.0, obtaining IA, IR and IB. As a result, of the 236 houses inspected, 51% (120/236) were not intervened and 49% (116/236) were intervened with Bacillus thuringiensis, of the houses not intervened (120/236) in the initial phase, 59% were positive (with the presence of some stage of A. aegypti) and in the final phase it was 63%, on the other hand, in the houses intervened with Bacillus thuringiensis (CCB) (116/236) in the initial phase 61% (71/116) were positive and the final phase there was a decrease to 32% (37/116). In conclusion, it is suggested that the application of Bti constitutes an adequate component for the management of larval populations of A. aegypti, in the city of Peru.

Instituciones: Universidad Continental