Table 4 Mean tick counts and percent efficacy of DPP at 8 hours after treatment or infestation against adult R. sanguineus (s.l.)

AM^a tick counts control

25.0

34.3

27.6

35.3

33.9

29.5

37.6

AM tick counts treated

29.1

3.8

2.9

2.9

0.9

5.5

11.4

AM % efficacy

0.0

89.1^d

89.6^d

91.8^d

97.4^d

81.4^d

69.8^d

Test F _(1,14)

–

173.07

189.78

443.41

302.28

41.35

73.68

P-value

–

< 0.0001

< 0.0001

< 0.0001

< 0.0001

< 0.0001

< 0.0001

GM^b tick counts control

24.7

33.9

27.3

35.1

33.5

28.7

37.3

GM tick counts treated

28.5

2.6

2.1

1.8

0.6

2.5

9.3

GM % efficacy

0.0

92.3^d

92.2^d

94.7^d

98.1^d

91.2^d

75.0^d

Test F _(1,14)

–

60.12

73.41

69.47

219.96

22.84

27.16

P-value

–

< 0.0001

< 0.0001

< 0.0001

< 0.0001

0.0003

0.0001