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Table 3 Efficacy of botanical oils 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 Mortality of nymphs (%)
3DAT 5DAT 7DAT 9DAT 11DAT 15DAT
T1 Azadirachtin 10,000ppm at 1ml/l 44.79e (41.99) 54.38e (47.49) 73.96cd (59.32) 76.04c (60.68) 79.17d (62.86) 82.92f (65.61)
T2 Neem oil at 10 ml/l 56.46bcd (48.69) 67.92bc (55.49) 76.88bc (61.31) 85.00b (67.31) 92.92b (74.59) 94.17cd (76.12)
T3 Neem oil at 15 ml/l 60.00b (50.76) 71.46b (57.72) 78.13bc (62.15) 87.92b (69.74) 93.96b (75.82) 96.67b (79.97)
T4 IIHR neem soap at 10g/l 55.00cd (47.85) 62.09d (51.98) 80.42b (63.79) 86.05b (68.12) 90.21c (71.81) 92.30de (73.93)
T5 Pongamia oil at 10 ml/l 15.84h (23.42) 23.55h (29.00) 31.88g (34.33) 40.42f (39.46) 46.88g (43.19) 52.09i (46.18)
T6 Pongamia oil at 15 ml/l 20.63g (26.96) 24.79h (29.82) 32.71g (34.86) 39.79f (39.09) 48.54g (44.15) 53.34i (46.89)
T7 Neem oil at 5 ml /l + Pongamia oil at 5 ml/l 54.17d (47.37) 66.88bcd (54.86) 70.00d (56.86) 73.34c (58.98) 81.67d (64.63) 90.84e (72.39)
T8 Neem oil at 10 ml /l + Pongamia oil at 10 ml/l 59.17bc (50.27) 69.38bc (56.44) 75.83bcd (60.55) 86.25b (68.28) 91.88bc (73.46) 95.42bc (77.92)
T9 FORS at 5 ml /l 30.00f (33.18) 32.50g (34.74) 39.80f (39.09) 49.17e (44.51) 55.00f (47.85) 59.79h (50.63)
T10 FORS at 10 ml /l 51.67cd (48.09) 55.42e (48.09) 61.25e (51.49) 64.38d (53.38) 72.09e (58.11) 75.42g (60.26)
T11 FORSat 15 ml /l 42.29e (40.55) 42.71f (40.79) 63.55e (52.84) 67.08d (54.98) 71.46e (57.70) 77.30g (61.52)
T12 Neem oil + pongamia oil + FORS at 5 ml /l each 53.13d (46.77) 65.42cd (53.96) 72.92cd (58.67) 77.71c (61.83) 78.96d (62.70) 84.79f (67.03)
T13 Imidacloprid 17.8SL at 0.25ml/l 71.67a (57.84) 82.29a (65.13) 91.88a (73.46) 95.84a (78.25) 97.29a (80.71) 99.17a (84.80)
T14 Water + wetting agent at 0.25ml/l each 1.25i (6.42) 1.67i (7.39) 1.88h (7.87) 2.29g (8.68) 2.92h (9.82) 3.75j (11.16)
T15 Water alone 0.00j (0.00) 1.04i (5.79) 1.25h (6.42) 1.25g (6.42) 1.46i (6.90) 1.88k (7.87)
T16 Untreated control 0.00j (0.00) 0.00j (0.00) 0.00i (0.00) 0.00h (0.00) 0.00j (0.00) 0.00l (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, FORS Fish Oil Rosin Soap