ISOLATION AND CHARACTERIZATION OF ENTOMOPATHOGENIC ...
ISOLATION AND CHARACTERIZATION OF ENTOMOPATHOGENIC ...
ISOLATION AND CHARACTERIZATION OF ENTOMOPATHOGENIC ...
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Tr.<br />
No.<br />
Table 43. Per cent reduction of nymph of Aphis crassivora on cowpea due to Verticillium lecanii (Vl1) under field conditions<br />
Treatments<br />
I spray II spray III spray<br />
3 DAA 7 DAA 14 DAA 3 DAA 7 DAA 14 DAA 3 DAA 7 DAA 14 DAA<br />
T1 2 x 10 5 17.73 bc 24.67 c 28.42 d 19.46 d 24.11 e 29.46 d 19.41 d 23.92 e 32.37 c<br />
T2 2 x 10 6 19.31 bc 28.79 de 32.07 cd 19.91 d 25.60 e 32.15 d 20.78 cd 28.03 de 38.53 d<br />
T3 2 x 10 8 19.48 bc 32.05 d 31.81 bc 20.82 cd 28.76 d 40.57 c 21.11 cd 31.89 d 44.73 c<br />
T4 2 x 10 10 20.00 bc 39.91 c 33.98 bcd 22.32 c 49.99 c 44.46 bc 22.83 c 55.53 c 51.03 b<br />
T 5 2 x 10 12 22.04 b 47.43 b 38.33 b 24.84 b 57.94 b 45.95 b 28.80 b 60.53 b 53.23 b<br />
T6<br />
Dimethoate 30 EC<br />
@ 1.7 ml/litre<br />
61.15 a 71.01 a 62.28 a 73.53 a 80.66 a 69.33 a 76.65 a 85.10 a 78.77 a<br />
T7 Untreated control 16.17 c 15.27 f 16.75 e 17.34 e 13.73 f 11.55 c 17.83 d 19.50 f 20.37 f<br />
DAA – Days after application<br />
In vertical columns means followed by similar letters do not significantly different (p=0.05)