Table 1 Effect of contact toxicity of botanicals and synthetic chemical on B. dorsalis larvae
Time after application (min) | |||||||
|---|---|---|---|---|---|---|---|
Treatments | 20 | 40 | 60 | 80 | 100 | 120 | 1440 |
P. guineense | 0.00 | 0.00b | 0.67a | 1.33a | 0.67b | 1.33a | 0.67b |
A. melegueta | 0.00 | 0.00b | 0.00b | 0.67b | 2.33a | 1.33a | 0.67b |
Z. officinale | 0.00 | 0.00b | 0.67a | 0.67b | 1.00ab | 0.33b | 2.33a |
6% azadiractin | 0.00 | 0.00b | 0.33b | 1.00a | 1.33a | 0.67a | 1.67a |
Cypermethrin | 0.00 | 2.67a | 0.67a | 0.33b | 1.33a | 0.00b | 0.00b |
Control | 0.00 | 0.00b | 0.00b | 0.00b | 0.00b | 0.00b | 0.00b |