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Table 4 Study 1: Mean numbers of ticks on treated dogs 48 h after treatment and 48 h after each re-infestation with Rhipicephalus sanguineus

From: Efficacy of slow-release collar formulations of imidacloprid/flumethrin and deltamethrin and of spot-on formulations of fipronil/(s) - methoprene, dinotefuran/pyriproxyfen/permethrin and (s) –methoprene/amitraz/fipronil against Rhipicephalus sanguineus and Ctenocephalides felis felis on dogs

Day

Mean numbers of ticks (48 h after re-infestation)

Untreated controls (Group 1)

Imidacloprid/

flumethrin (Group 2)

Deltamethrin

(Group 3)

Fipronil/

(s)-methoprene (Group 4)

Dinotefuran/

pyriproxyfen/

permethrin (Group 5)

2*

28.8

6.3

3.9

-

-

9

36.0

0.3

4.3

-

-

16

33.9

0.8

0.9

-

-

23

38.4

0.0

2.8

-

-

30

33.4

0.1

3.4

-

-

58

26.5

0.1

8.1

-

-

86

31.1

0.3

8.3

-

-

114

29.1

0.4

2.3

-

-

142

33.3

0.0

5.9

-

-

163

29.9

-

-

3.3*

6.0*

170

31.3

0.0

5.1

0.1

0.6

177

33.1

0.1

-

0.5

1.5

184

32.8

0.1

-

2.4

2.8

191

34.1

0.3

-

2.5

5.5

198

23.6

0.0

-

13.4

9.1

226

29.4

0.4

-

-

-

  1. * Flea counts 48 h after treatment.