%0 Journal Article
%T Comparison of two commercial formulations of Bacillus thuringiensis var. israelensis for the control of Anopheles aquasalis (Diptera: Culicidae) at three salt concentrations
%A Osborn
%A Frances R
%A Herrera
%A Melfran J
%A G¨®mez
%A Cruz J
%A Salazar
%A Armando
%J Mem¨®rias do Instituto Oswaldo Cruz
%D 2007
%I Instituto Oswaldo Cruz, Minist¨¦rio da Sa¨²de
%R 10.1590/S0074-02762007000100011
%X anopheles aquasalis larvae are salt water tolerant, preferring concentrations between 10 and 20 parts per thousand (ppt). the larvicidal efficacy of two formulations of bacillus thuringiensis var. israelensis (vectobac-12as£¿ and bactivec£¿), was investigated against an. aquasalis at salinities of 0, 10, and 20 ppt. a probit analysis was used to calculate the lethal concentrations (lc50 and lc95) for each product at each salinity. the lc50 and lc95 were higher for bactivec£¿ than vectobac-12as£¿, and for bactivec£¿, the lc50 and lc95 increased with salinity. vectobac-12as£¿ should thus be preferred to bactivec£¿ for an. aquasalis control, especially in saline breeding habitats.
%K anopheles
%K sodium chloride
%K mosquito control.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0074-02762007000100011&lng=en&nrm=iso&tlng=en