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Effect of Bt corn-treated prey on C. carnea fitness. (A) Larval survival. (B) Adult emergence. (C) Fertility. (D) Fecundity. Fecundity was defined as the number of eggs per female per day. Toxins were mixed with the diet at a concentration of either 1 μg/ml (open bars) or 10 μg/ml (grey bars). The results for controls without toxin (striped bars) are also shown. The values are means ± standard errors from three replicates. Ten larvae were used for each replicate.
