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Table 2 Mean reduction (%) of life stages of onion thrips as induced by six different entomopathogenic nematode isolates (EPNs) at different concentrations

From: Biological control of the onion thrips, Thrips tabaci Lindeman (Thysanoptera: Thripidae), in open fields using Egyptian entomopathogenic nematode isolates

Concentrations (IJs/ml) Mean reduction % ± SE*
H. bacteriophora (HP88) S. carpocapsae (All) H. indica (EGAZ2) H. indica (EGAZ3) S. carpocapsae (BA2) S. carpocapsae (EGAZ9)
Adults Nymphs Adults Nymphs Adults Nymphs Adults Nymphs Adults Nymphs Adults Nymphs
10,000 52.28 ± 17.1 b 33.77 ± 20.1 b 46.83 ± 9.7 a 57.6 ± 8.6 a 34.78 ± 7.3 b 46.48 ± 7.1 b 56.4 ± 4.8 a 66.0 ± 1.2 a 20.2 ± 16.6 a 24.05 ± 12.9 a 32.76 ± 10.9 a 34.58 ± 11.1 a
15,000 56.52 ± 10.1 a 65.62 ± 9.4 a 38.75 ± 8.4 a 51.82 ± 10.1 ab 59.9 ± 6.4 a 69.93 ± 7.5 a 26.23 ± 14.3 b 60.33 ± 7.5 a 30.5 ± 5.1 a 41.58 ± 5.1 a 27.1 ± 9.7 a 28.48 ± 4.5 a
20,000 52.03 ± 4.5 a 62.58 ± 3.8 a 37.6 ± 8.3 a 38.78 ± 11.8 b 40.85 ± 7.3 b 54.03 ± 5 b 48.8 ± 6.2 a 48.57 ± 4.5 b 20.7 ± 1 a 37.63 ± 4.5 a 36.58 ± 9.2 a 46.48 ± 4.5 a
F 6.47 5.54 0.71 2.42 13.57 7.65 6.72 7.37 0.69 1.75 0.26 1.46
P 0.0094 0.0157 0.51 0.123 0.0004 0.0051 0.0083 0.0059 0.52 0.208 0.783 0.263
LSD 20.015 26.89 18.1 18.63 10.7 13.05 18.22 10.87 21.15 20.98 22.9 22.7
  1. *% reduction within a row followed by the same letters are not significantly different at (P < 0.05)