TABLE 1.
Bioassay results for four species of mosquitoes
| Toxin | LC50 (ng/ml)a
|
|||
|---|---|---|---|---|
| Anopheles quadrimaculatus | A. aegypti | Culex quinquefasciatus | C. pipiens | |
| Cry19Aa | 3.0 (2.0-4.4) | 1.4 × 105 (0.4-103) | 35 (22-52) | 6 (3-9) |
| 19AL1L2 | 2.2 (2.2-2.3) | 3.3 (3.1-3.5) | 19 (11-32) | 5 (1-10) |
a
Two-day-old larvae of A. aegypti, C. quinquefasciatus, and C. pipiens and 3-day-old larvae of A. quadrimaculatus were used for bioassays. Mortality was recorded after 24 h of exposure to a serial dilution of the toxins. The 95% confidence limit is indicated in parentheses. Bioassays used inclusion crystal proteins and spores purified from B. thuringiensis. LC50, 50% lethal concentration.