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Table 3 Toxicity of Cry11Aa and Cry4Ba against third-instar Aedes spp. larvae

From: Insecticide susceptibility of Aedes albopictus and Ae. aegypti from Brazil and the Swiss-Italian border region

   Cry11Aa Cry4Ba
Species Colony n LC50 (95% CI)a RRb n LC50 (95% CI)a RRc
Ae. albopictus RecLalbb 1500 0.410 (0.311–0.514) 1380 0.595 (0.431–0.787)
  TICINO 1020 0.539 (0.437–0.648) 1.3 1440 0.483 (0.213–0.839) 0.8
  COMO 1120 0.650 (0.517–0.798) 1.6 1060 0.782 (0.589–1.042) 1.3
  SPalb 1500 0.432 (0.335–0.530) 1.1 980 0.830 (0.622–1.095) 1.4
Ae. aegypti Rockefellerc 1080 0.162 (0.121–0.210) 1120 0.331 (0.209–0.492)
  SPaeg 1140 0.266 (0.207–0.339) 1.6 1140 0.685 (0.482–0.969) 2.1
  1. aConcentration (mg/l) that is lethal for 50% or 90% of the larvae over a 24 h exposure, mean and 95% confidence interval
  2. bResistance ratio (RR) between the LCs of the test colony and the reference colony
  3. cReference colony