Table 1.
Susceptibility values (LC50 and LC90 expressed in % of active ingredient) of Culicoides nubeculosus from French colony to different active ingredients. Mortality was recorded 24 h after 1 h exposure to different concentrations
| Active ingredient | No. test | LC50 % | LC90 % |
|---|---|---|---|
| (n) | (95 % CI) | (95 % CI) | |
| Deltamethrin | 4 | 0.0003 | 0.0019 |
| (2,528) | (0.0001–0.0004) | (0.0012–0.0043) | |
| Alpha-cypermethrin | 3 | 0.0016 | 0.0199 |
| (1,883) | NA | NA | |
| Permethrin | 3 | 0.0102 | 0.1045 |
| (2,055) | (0.0080–0.0117) | (0.0849–0.1337) | |
| Chlorpyrifos-methyl | 4 | 0.0725 | 0.1661 |
| (1,803) | NA | NA | |
| Phoxim | 3 | 0.1532 | 0.2759 |
| (1,965) | (0.1143–0.2091) | (0.2036–0.5761) | |
| Diazinon | 4 | 0.1839 | 0.3317 |
| (1,527) | (0.0800–0.2747) | (0.2347–0.4333) |
No test number of tests performed, n number of individuals tested, CI confidence interval, NA confidence interval not computed due to a large variability in the dose/response effect