TABLE 4.
Biological activity of B. thuringiensis AGRO1 and AGRO2 against different insect pests
| Insect species | LC50 of indicated toxina
|
||
|---|---|---|---|
| AGRO1 | AGRO2 | aizawai | |
| H. virescens | 11 (9–14) | 5 (3–7) | 8 (3–24) |
| S. littoralis | 207 (123–346) | 103 (72–109) | 84 (39–117) |
| S. frugiperda | 113 (73–171) | 66 (43–97) | ND |
| O. nubilalis | 57 (40–94) | 10 (7–13) | ND |
| P. xylostella | 0.7 (0.2–1.2) | 0.9 (0.1–2) | ND |
a
The LC50s were calculated as nanograms of toxin per square centimeter, and 95% confidence intervals are indicated in parentheses. Each value is the mean of results from at least two independent experiments. ND, not done.