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Table 2 Concentration mortality response of Aedes aegypti 3rd instar larvae to Bacillus thuringiensis subsp. israelensis (Bti) reactivated strain extracts (RE) and stored extracts (SE)

From: Viability and reconstitution of delta-endotoxins from Bacillus thuringiensis var. israelensis extracts after forty years of storage against Aedes aegypti (Diptera: Culicidae)

Bti strains LC50 (mg/l) 24 h (RE) Confidence interval 95% LC50 (mg/l) 24 h (SE) Relative toxicity of SE
Lower Higher
3260 0.0014 ± 0.0001 0.0012 0.0016 0.12 ± 0.01 1.16
3756 0.0037 ± 0.0002 0.0035 0.0039 5.52 ± 0.19 0.06
3501 0.0852 ± 0.0026 0.0764 0.0940 1.16 ± 0.03 7.34
3691 0.0840 ± 0.0029 0.0757 0.0923 4.21 ± 0.15 1.99
3696 0.0924 ± 0.0053 0.0813 0.1035 5.2 ± 0.11 1.77