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Table 2 Efficacy of entomopathogenic fungi against Maconellicoccus hirsutus under laboratory condition

From: Management of the grape mealy bug, Maconellicoccus hirsutus (Green), using entomopathogenic fungi and botanical oils: a laboratory study

Treatment

Treatment details

Cumulative mortality of nymphs (%)

3DAT

5DAT

7DAT

9DAT

11DAT

15DAT

T1

Lecanicillium lecanii at 2g/l

10.00e (18.42)

16.46e (23.90)

32.09e (34.48)

46.88e (43.19)

57.92d (49.54)

67.08e (54.97)

T2

L. lecanii at 4g/l

12.92d (21.05)

27.09c (31.33)

45.00c (42.11)

58.13d (49.66)

73.96c (59.30)

83.96c (66.38)

T3

L. lecanii at 6g/l

17.50c (24.71)

28.75c (32.41)

47.08c (43.31)

63.34c (52.72)

70.84c (57.31)

82.30c (65.11)

T4

Beauveria bassiana at 2g/l

4.79g (12.57)

13.13f (21.17)

17.50g (24.69)

32.09g (34.48)

35.63f (36.62)

42.71g (40.79)

T5

B. bassiana at 4g/l

5.84g (13.96)

12.92f (21.01)

25.42f (30.25)

37.09f (37.50)

46.67e (43.07)

55.42f (48.09)

T6

B. bassiana at 6g/l

7.92f (16.33)

13.54ef (21.54)

27.29f (31.47)

35.84f (36.75)

44.59e (41.87)

56.67f (48.81)

T7

B. bassiana + L. lecanii at 2g/l each

11.88de (20.13)

20.21d (26.66)

40.00d (39.21)

54.79d (47.73)

60.00d (50.75)

75.63d (60.42)

T8

B. bassiana + L. lecanii at 4g/l each

18.96bc (25.76)

33.75b (35.49)

48.13c (43.91)

68.75b (55.99)

79.17b (62.86)

88.96b (70.64)

T9

B. bassiana + L. lecanii at 6g/l each

20.42b (26.84)

35.00b (36.25)

52.71b (46.53)

66.25bc (54.46)

81.25b (64.33)

90.21b (71.77)

T10

Imidacloprid 17.8 SL at 0.25ml/l

70.42a (57.04)

81.67a (64.64)

89.17a (70.79)

92.08a (73.70)

95.21a (77.37)

97.08a (80.49)

T11

Wetting agent + water at 0.25ml/l

1.04h (5.79)

1.46g (6.90)

1.67h (7.39)

2.09h (8.28)

2.92g (9.82)

3.54h (10.83)

T12

Water alone

0.00i (0.00)

1.04g (5.79)

1.25h (6.42)

1.25h (6.42)

1.46h (6.90)

1.67i (7.39)

T13

Untreated control

0.00i (0.00)

0.00h (0.00)

0.00i (0.00)

0.00i (0.00)

0.00i (0.00)

0.00j (0.00)

  1. Note: Twenty mealybug nymphs per sprout were released and considered as pre-treatment count (20 × 8 × 3 = 480 mealybugs per treatment). Figures in the parentheses are arcsine transformed values; the mean values with the same alphabetical superscripts are statistically non-significant as per DMRT
  2. DAT days after treatment