Skip to main content

Advertisement

Table 4 Susceptibility values (LC50 and LC90 expressed in % of active ingredient) of different African populations of Culicoides imicola 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?

  Rufisque, Senegal Pretoria, South Africa
Active ingredient No. test LC50 % LC90 % No. test LC50 % LC90 %
(n) (95 % CI) (95 % CI) (n) (95 % CI) (95 % CI)
Deltamethrin 4 0.0005 0.0015 3 0.0003 0.0020
(458) (0.0004–0.0005) (0.0012–0.0018) (291) NA NA
Permethrin 3 0.0031 0.0168    
(521) (0.0018–0.0045) (0.0105–0.0431)    
  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