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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