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Table 2 Effects of gamma irradiation of S. cerealella eggs (different rates) on T. evanescens parasitism, emergence rate and sex ratio (parental, P generation)

From: Cold storage and gamma irradiation of Sitotroga cerealella Olivier eggs (Lepidoptera: Gelechiidae) in relation to the success of parasitism by Trichogramma evanescens Westwood (Hymenoptera: Trichogrammatidae)

TreatmentNo. of exposed eggs (mean ± S.E)% of parasitism% of emergence% sex ratio (female)
Control6123.3 ± 0.3397.3 ± 0.06a97.5 ± 0.067 a97.7 ± 0.33a
40 GY5511.7 ± 0.8897.1 ± 0.52a96.96 ± 0.62a95.3 ± 0.33b
60 GY4897.7 ± 0.3396.1 ± 0.37ab95.16 ± 0.82ab93.0 ± 0.58c
80 GY4797.3 ± 0.6793.03 ± 0.58ab93.2 ± 0.57bc91.0 ± 0.58c
100 GY4285 ± 0.10092.7 ± 0.95ab91.5 ±0.64c90.0 ± 0.58c
P 0.01040.00010.0000
F5.928495320.57485540.318182
df141414
  1. a, b, & c: There is no significant difference (P > 0.05) between any two means, within the same column have the same superscript letter.