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
Toxin conc. (μg/g diet)
Mortality (%)
Susceptible
0.2
10.00
0.4
16.67
0.8
23.33
1.6
40.00
3.2
70.00
Tolerant 1st generation
0.5
6.67
2.0
6.0
60.00
10.0
73.33
Tolerant 10th generation
4.0
13.33
8.0
33.33
16.0
66.67
32.0
76.67