Small scale field trials of Bacillus sphaericus (strain 2362) against anopheline and culicine mosquito larvae in southern Mexico.

Type

Article

Date of Publication

1990

Original Publication

Journal of the American Mosquito Control Association

Volume

6

Series / Issue

Issue: 2

Pages

300-305

Contributed by

American Mosquito Control Association

Notes

Author(s) - Arredondo-Jimenez JI.Lopez T.Rodriguez MH.Bown DN.

 

Abstract

Experimental breeding sites simulating natural conditions were used to evaluate the efficacy of 2 formulations of Bacillus sphaericus (strain 2362) against Anopheles albimanus and culicine (mostly Culex coronator and Cx. quinquefasciatus) mosquito larvae of southern Mexico. Three doses of each formulation were used in a first field trial: 2, 3 and 4 g/m2 (granular) or 2, 3 and 4 ml/m2 (liquid); and in a second field trial: 0.125, 0.24 and 0.5 g/m2 (granular) or 0.125, 0.25 and 0.5 ml/m2 (liquid). The optimum concentrations of each formulation for effective control of larval populations over periods of 3-4 months were 0.125 ml/m2 of liquid product for Culex spp. and 2 g/m2 of granular product for An. albimanus (ca. 70% mean reduction).

Notes

Author(s) - Arredondo-Jimenez JI.Lopez T.Rodriguez MH.Bown DN.