Insecticides | Rate of application (Cm3/F) | Before-spray | Reduction (%) at indicated duration after application (mean ± SD) | Average reduction % | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Initial effect | Residual effect | Â | ||||||||||
Alive larvae (AL) | % Infestation | 1 day | 3 days | 5 days | 7 days | Â | ||||||
AL | %R | AL | %R | AL | %R | AL | %R | Â | ||||
Challenger | 410.0 | 20.33 ± 3.2 | 67.77 ± 3.2 | 9.33 ± 1.5b | 60.65 ± 1.5c | 4.67 ± 0.6b | 78.67 ± 0.6b | 3.67 ± 0.6b | 84.74 ± 0.5b | 1.67 ± 0.6b | 91.27 ± 0.5 | 84.89b |
Coragen | 6.0 | 18.33 ± 3.1 | 61.10 ± 3.1 | 4.67 ± 0.6cd | 78.18 ± 1.5b | 1.67 ± 1.5b | 91.55 ± 1.6a | 0.67 ± 1.2cd | 96.92 ± 1.2a | 0.33 ± 0.6b | 98.06 ± 0.6 | 95.51a |
Emperor | 200.0 | 24.67 ± 7.8 | 82.23 ± 1.5 | 2.00 ± 1.0d | 93.05 ± 1.0a | 1.00 ± 1.0b | 96.23 ± 1.0a | 0.00 ± 0.0d | 100.0 ± 0.0a | 0.00 ± 0.0b | 100.00±0.0 | 98.74a |
Radiant | 25.0 | 19.33 ± 2.1 | 64.43 ± 2.1 | 7.67 ± 1.5bc | 66.00 ± 1.6c | 4.00 ± 1.0b | 80.77 ± 1.0b | 2.67 ± 0.6bc | 88.33 ± 0.5b | 0.67 ± 0.6b | 96.33±0.5 | 88.48b |
Vapcomic | 270.0 | 21.33 ± 7.8 | 71.10 ± 7. 8 | 5.00 ± 2.0cd | 79.91 ± 2.0b | 4.33 ± 0.6b | 81.12 ± 0.5b | 3.67 ± 1.2b | 85.46 ± 1.1b | 0.67 ± 1.2b | 96.67 ± 0.6 | 87.75b |
Control | – | 22.00 ± 3.0 | 73.33 ± 3.0 | 25.67 ± 2.5a | – | 23.67 ± 7.8a | – | 26.00 ± 3.0a | – | 20.67 ± 4.04a | - | - |
LSD 0.05 | Â | NS | NS | 3.11 | 11.93 | 5.73 | 8.56 | 2.55 | 6.38 | 3.14 | NS | 5.28 |