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Table 4 The lethal concentration (LC50 and LC90) of Steinernema siamkayai (IIVR JNC01 strain) and Heterorhabditis indica (NBAIIH38 strain) against lepidopteran pests at 2 days after treatment and eggplant ash weevil (Myllocerus subfaciatus Guerin.) at 7 days after treatment

From: Isolation, identification and biocontrol potential of entomopathogenic nematodes occurring in Purvanchal and Bundelkhand regions of Uttar Pradesh, India

Lepidopteran insect pests

Entomopathogenic nematode species

LC50

95% Fiducial limits

LC90

95% Fiducial limits

Slope ± SE

χ2

P (< 0.05)

Spoladea recurvalis

Steinernema siamkayai (IIVR JNC01 strain)

60

42–81

385

221–1300

1.58 ± 0.32

24.15

< 0.0001

Heterorhabditis indica (NBAIIH38 strain)

39

24–53

205

116–1244

1.78 ± 0.49

12.92

0.0003

Spodoptera litura

Steinernema siamkayai (IIVR JNC01 strain)

20

11–28

68

52–109

2.46 ± 0.53

21.59

< 0.0001

Heterorhabditis indica (NBAIIH38 strain)

27

16–35

103

77–178

2.19 ± 0.42

26.97

< 0.0001

Spilosoma obliqua

Steinernema siamkayai (IIVR JNC01 strain)

19

10–26

55

43–84

2.83 ± 0.65

18.79

< 0.0001

Heterorhabditis indica (NBAIIH38 strain)

20

11–25

43

35–65

3.83 ± 1.00

14.73

< 0.0001

Myllocerus subfaciatus

Steinernema siamkayai (IIVR JNC01 strain)

105.51

49.9–150.3

519.74

369.8–1482

1.85 ± 0.44

12.91

0.0003

Heterorhabditis indica (NBAIIH38 strain)

95.04

335.9

2.33 ± 1.05

03.67

0.055