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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

From: How do species, population and active ingredient influence insecticide susceptibility in Culicoides biting midges (Diptera: Ceratopogonidae) of veterinary importance?

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)
  1. 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