ISOLATION AND CHARACTERIZATION OF ENTOMOPATHOGENIC ...

Tr.
No.
Table 40. Per cent reduction of nymph of Brevicornia brassicae on cabbage due to Verticillium lecanii (Vl1) under field conditions
Treatments
I spray II spray III spray
3 DAA 7 DAA 14 DAA 3 DAA 7 DAA 14 DAA 3 DAA 7 DAA 14 DAA
T1 2 x 10 5 14.26 bc 21.26 d 26.67 c 14.78 d 20.14 e 28.78 c 17.99 d 23.51 c 31.48 e
T 2 2 x 10 6 16.07 b 23.54 d 32.54 b 15.91 d 21.98 de 32.44 c 19.37 cd 26.11 c 36.80 d
T 3 2 x 10 8 15.68 b 25.52 d 33.08 b 18.19 c 26.59 d 38.05 b 19.82 cd 28.41 c 43.01 c
T4 2 x 10 10 15.49 b 37.41 c 31.97 b 18.86 c 42.99 c 37.54 b 21.45 c 56.28 b 48.13 b
T5 2 x 10 12 17.88 b 43.44 b 35.68 b 22.15 b 50.37 b 39.89 b 25.31 b 61.16 b 51.68 b
T6
Dimethoate 30 EC
@ 1.7 ml/litre
50.45 a 60.74 a 53.89 a 68.25 a 76.69 a 66.35 a 78.50 a 87.53 a 81.17 a
T7 Untreated control 10.71 e 11.59 e 14.11 d 12.49 e 11.14 f 10.50 e 13.80 e 17.03 d 17.47 f
DAA – Days after application
In vertical columns means followed by similar letters do not significantly different (p=0.05)