Table 1. Baseline susceptibility and diagnostic concentration (LC99) (± 95% Confidence Interval) of western corn rootworm adults by contact to bifenthrin, combined for overall analysis, from laboratory colonies maintained over several generations.
Populations | N a | Slope (±SE) | LC50 (95% CI)μg/vial | LC99 (95% CI)μg/vial | X 2 (d.f.) |
---|---|---|---|---|---|
8 lab colonies +2 n-diapause | 2100 | 2.68 (0.12) | 0.10 (0.09–0.13) | 0.77 (0.53–1.34) | 12.41 (4) |
aTotal number of adults tested