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Table 7 Calculated 50% (LC50) and 90% (LC90) values (ppm) of a laboratory strain of D. gallinae exposed in vitro to fluralaner, phoxim and spinosad

From: In vitro activity of fluralaner and commonly used acaricides against Dermanyssus gallinae isolates from Europe and Brazil

Test

Compound

LC50

LC90

Filter paper contact

Fluralaner

11.62

49.93

Phoxim

0.72

2.63

Spinosad

1524

c.4000a

Immersion

Fluralaner

0.52

1.57

Phoxim

4.25

30.44

Spinosad

2311

> 4000a

Feeding

Fluralaner

0.0125

< 0.1a

  1. aThese values could not be estimated using the mathematical model