01554nas a2200217 4500008004100000245016400041210006900205300001000274490000700284520077900291653002001070653003601090653003101126653002301157653001601180100002001196700001901216700001701235700001401252856007001266 1981 eng d00aEffects of Temperature and Instar on the Efficacy of Bacillus thuringiensis var. israelensis and Bacillus sphaericus Strain 1593 Against Aedes stimulans Larvae0 aEffects of Temperature and Instar on the Efficacy of Bacillus th a78-870 v383 a
Laboratory trials of Bacillus thuringiensis var. israelensis (serotype 14) and B. sphaericus strain 1593 against field-collected Aedes stimulans showed that susceptibility declined with increasing instar and decreasing temperature. Test results with B. sphaericus were more erratic than with B. thuringiensis, and the efficacy of the former declined more rapidly with decreasing temperature. B. thuringiensis was significantly more active than B. sphaericus under all treatment conditions. These results indicate that the effective use of this strain of B. sphaericus as a mosquito biological control agent may be limited to warm water situations against more susceptible species.
10aAedes stimulans10aBacillus sphaericus strain 159310aBacillus thuringiensis var10aBiological control10aisraelensis1 aWraight, S., P.1 aMolloy, D., P.1 aJamnback, H.1 aMcCoy, P. uhttp://www.sciencedirect.com/science/article/pii/0022201181900379