Table 2.
Injection dose | Dead/ total | Observed mortality (%) | Expected mortality (%) |
---|---|---|---|
0.4 μg | 0.1/20 | 0.50 | 0.90 |
0.5 μg | 2.0/20 | 10.00 | 6.84 |
0.6 μg | 4.0/20 | 20.00 | 22.00 |
0.7 μg | 8.5/20 | 42.50 | 43.36 |
0.8 μg | 12.3/20 | 61.50 | 63.94 |
0.9 μg | 15.4/20 | 77.00 | 79.36 |
1 μg | 18.6/20 | 93.00 | 89.11 |
Control | 0.0/20 | – | – |
Chi2 | 0.835 | ||
Slope | 9.04 | ||
LD50 | 0.73 μg/larva | ||
LD20 | 0.59 μg/larva |