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Table 3 Percentages of T. bactrae females emerged from S. littoralis egg masses with different physical characteristics in a no-choice and choice tests

From: Efficacy of the parasitoid, Trichogrammatoidea bactrae Nagaraja (Hymenoptera: Trichogrammatidae) on the cotton leafworm, Spodoptera littoralis (Boisd.) (Lepidoptera: Noctuidae) egg masses

Egg masses No-choice Choice
Female percentage Overall average Female percentage Overall average
One layer with no scales 69.33 ± 2.47 Ab (60–81) 65.73 ± 1.98a 72.00 ± 2.81 Aa (60–90) 60.6 ± 2.42b
One layer with low scale density 71.67 ± 1.23 Ab (59–82) 63.80 ± 1.28 Bb (55–70)
One layer with mid scale density 76.28 ± 1.04 Aa (74–80) 64.80 ± 2.99 Bab (60–90)
One layer with high scale density 45.62 ± 3.19 Ad (30–55) 41.80 ± 2.69 Ac (30–55)
Two layers with low scale density 67.91 ± 2.00 Ab (59–79) 66.7 ± 1.70a 66.77 ± 2.03 Aab (50–73) 66.62 ± 1.80a
Two layers with mid scale density 71.18 ± 1.97 Ab (60–82) 66.00 ± 1.94 Aab (60–75)
Two layers with high scale density 61.00 ± 1.14 Bbc (55–65) 67.10 ± 1.42 Aab (60–72)
Three layers with low scale density 64.43 ± 1.72 Abc (55–70) 62.57 ± 1.71b 68.80 ± 2.92 Aab (55–90) 65.9 ± 2.22ab
Three layers with high scale density 60.71 ± 1.70 Ac (55–65) 63.00 ± 1.53 Ab (55–70)
  1. Means ± SE sharing the same small letters in the same columns and same capital letters in the rows are statistically insignificant
  2. P > 0.05. Numbers in parentheses represent the range