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Table 4 Susceptibility of susceptible and Bt Cry1C—tolerant strains (10th generation) of S. littoralis larvae

From: Alterations in the expression of certain midgut genes of Spodoptera littoralis (Boisd.) (Lepidoptera: Noctuidae) larvae and midgut histopathology in response to Bacillus thuringiensis Cry1C toxin

Strain LC50 (95% FL) (μg/g diet) Slope ± SE RR χ2(df)
Susceptible 1.8950 (1.3193.3-77) 1.489249 ± 0.290369 - 1.761(3)
Tolerant 12.263 (9.433-16.692) 2.029307 ± 0.311965 6.5 1.212(3)
  1. 95% FL 95% fiducial limits, SE standard error, RR resistance ratio, χ2 chi-square, df degree of freedom