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Table 4 Large scale field bio-efficacy trial (RBD) of Lecanicillium lecanii against thrips (season I)

From: Lecanicillium lecanii (Zimmermann) Zare & Gams, as an efficient biocontrol agent of tea thrips, Scirtothrips bispinosus Bagnall (Thysanoptera: Thripidae)

T. no. Treatments No. of thrips/75 shoots
Pre-treatment After I spray After II Spray After III spray
Day 7 Day 14 Day 7 Day 14 Day 7 Day 14 Day 21 Day 28
T1 L. lecanii @ 1500 g 260 (28.07) 72 (14.97)c 156 (21.82)c 76 (15.39)a 156 (21.82)a 28 (9.64)b 32 (10.17)a 30 (9.83)a 21 (8.44)ab
T2 L. lecanii + Jagerry @ 1500 g 258 (27.97) 46 (12.10)b 131 (20.04)abc 53 (12.88)a 135 (20.34)a 12 (6.63)a 29 (9.60)a 22 (8.49)a 13 (6.88)ab
T3 L. lecanii + Tween 80 @1500 g 251 (27.51) 57 (13.34)bc 143 (20.87)bc 55 (13.12)a 142 (20.80)a 17 (7.41)a 26 (9.00)a 24 (8.70)a 20 (8.28)ab
T4 NKAE @ 5% 260 (28.08) 53 (12.93)bc 128 (19.71)abc 63 (13.90)a 151 (21.30)a 29 (9.76)b 33 (10.39)a 35 (10.60)a 32 (10.16)b
T5 NKAE @ 7.5% 253 (27.71) 50 (12.60)b 107 (18.14)ab 128 (19.81)b 180 (23.43)a 20 (8.11)ab 26 (9.26)a 27 (9.43)a 20 (8.28)ab
T6 Quinalphos 25 EC @ 1000 ml 250 (27.54) 29 (9.70)a 95 (17.01)a 118 (18.78)b 168 (22.58)a 13 (6.90)ab 14 (7.06)a 16 (6.84)a 11 (6.31)a
T7 Control 258 (27.97) 243 (27.13)d 226 (26.18)d 246 (27.31)c 238 (26.89)b 258 (27.97)c 226 (26.18)b 239 (26.94)b 211 (25.32)c
CD at p=0.05 NS 2.29 3.20 4.02 3.15 2.94 3.43 4.27 2.16
SE (±)   1.05 1.47 1.85 1.44 1.35 1.57 5.99 0.99
  1. Figures in parentheses are transformed values of (x+1)0.5; figures followed by the same alphabets in a vertical column are not significantly different at five percent level