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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