Treatments
|
Concentrations
|
Mean no. of mortality
|
% Corrected mortality
|
---|
Cry1Ac + Cry 2Ab
|
4 μg/ml
|
0.5a
|
2.50
|
8 μg/ml
|
1.0a
|
5.00
|
Cypermethrin
|
2 mg/ml
|
2.2b
|
10.83
|
- A number of twenty sprayed eggs of S. cerealella pest were kept in each replicate. Three replicates were used/ each concentration. The mixture of Bt Cry1Ac and Cry 2Ab was compared to cypermethrin (positive control) and dH2O (negative control)
- a, bInsignificant difference between similar letter using Fischer Exact Probability test at P < 0.05