Table 2 Development time, survival and weight of Chrysoperla zastrowi sillemi fed on Bemisia tabaci reared on Bt and non-Bt cotton cultivars

^*Larval period (days)

10.85 ± 0.26 (26)

10.84 ± 0.29 (25)

10.80 ± 0.21 (25)

F = 0.01; df = 2.73; P = 0.991

^#Larval survival (%)

86.7

83.3

83.3

χ² = 0.317; df = 2; P = 0.957

^*Pupal period (days)

7.14 ± 0.17 (22)

7.10 ± 0.14 (20)

7.05 ± 0.18 (21)

F = 0.08; df = 2.60; P = 0.926

^#Pupal survival (%)

84.6

80.0

84.0

χ² = 0.463; df = 2; P = 0.927

^*Larval weight (mg)

11.00 ± 0.28 (20)

11.00 ± 0.36 (20)

11.15 ± 0.32 (20)

F = 0.03; df = 2.57; P = 0.971

^*Cocoon weight (mg)

13.65 ± 0.55 (20)

13.55 ± 0.60 (20)

13.75 ± 0.61 (20)

F = 0.07; df = 2.57; P = 0.929