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Table 1 Percentage mortality (mean ± SD) of Agrotis ipsilon larvae exposed to different isolates of entomopathogenic nematodes, at four different concentrations of infective juveniles (IJs) in Petri dish at 25±1 °C

From: Evaluation of local isolates of entomopathogenic nematodes for the management of black cutworm, Agrotis ipsilon Hufnagel (Lepidoptera: Noctuidae)

EPNsa

Mortality rates (%) (mean ± SD) of Agrotis ipsilon larvae*

1st day

2nd day

3rd day

4th day

10 IJs/larva

25 IJs/larva

50 IJs/larva

100 IJs/larva

10 IJs/larva

25 IJs/larva

50 IJs/larva

100 IJs/larva

10 IJs/larva

25 IJs/larva

50 IJs/larva

100 IJs/larva

10 IJs/larva

25 IJs/larva

50 IJs/larva

100 IJs/larva

FLH-4-H

0 ± 0Aa

0 ± 0Aa

0 ± 0Aa

0 ± 0Aa

15 ± 6Ba

25 ± 6Bb

27 ± 9Ab

38 ± 8Ac

20 ± 0Ba

25 ± 9Aa

40 ± 8Ab

45 ± 9Ab

20 ± 7Aa

35 ± 11ABb

40 ± 14Ab

52 ± 11Ac

216-H

5 ± 1Ba

7 ± 2Ba

10 ± 3Ba

10 ± 0Ba

25 ± 5Ba

30 ± 7Ba

52 ± 9Bb

55 ± 10Abb

32 ± 5Ca

52 ± 9Bb

70 ± 8Bc

72 ± 9Bc

40 ± 9Ba

52 ± 9BCab

70 ± 8BCbc

87 ± 9Bc

E76-S

0 ± 0Aa

5 ± 1Ba

7 ± 3Ba

15 ± 4Bb

20 ± 8Ba

57 ± 11Cb

60 ± 9Bb

67 ± 12Bc

27 ± 11Ca

72 ± 12Cb

75 ± 7Bb

85 ± 5Bb

35 ± 11Ba

70 ± 12Cb

82 ± 5Cb

90 ± 8Bb

MGZ-4-S

0 ± 0Aa

0 ± 0Aa

0 ± 0Aa

0 ± 0Aa

2 ± 1Aa

10 ± 5Aab

29 ± 5Ab

62 ± 8Abc

10 ± 4Aa

15 ± 4Aa

52 ± 6ABb

80 ± 2Bc

12 ± 7Aa

20 ± 8Aa

60 ± 8Bb

87 ± 5Bc

  1. *Mean values followed by different uppercase letters in the same column and mean values followed by different lowercase letters in the same line are statistically different according to Tukey’s test (P ≤ 0.05)
  2. aFLH-4-H: H. bacteriophora, E76-S: S. carpocapsae, 216-H: H. indica, MGZ-4-S: S. bicornotum