Table 2 Percent insecticidal efficacy against Phlebotomus perniciosus observed at 4 h in dogs treated with the combination of fipronil and permethrin (Experiments A & B) based on Geometric means

1 (A)

5

74.3

5

0.3

99.6*

98.7% *

1 (B)

8

73.5

8

1.6

97.9*

7 (A)

5

75.2

5

0

100*

99.7% *

7 (B)

8

72.1

8

0.4

99.5*

14 (A)

5

74.5

5

5.7

92.3*

96.8% *

14 (B)

7

72.1

8

1.2

98.4*

21 (A)

5

75.2

5

33.9

54.9*

93.4% *

21 (B)

7

74.0

8

1.0

98.7*

29 (A)

5

74.2

5

7.0

90.6*

78.9% *

29 (B)

7

75.1

8

25.7

65.7*