Table 1 Mean numbers of engorged female sand flies and percent reductions in engorged sand flies on deltamethrin collar-treated dogs compared to untreated control dogs. Collars were placed on dogs on Day 0

7^a

22.4 ± 5.0

22.0

16–29

0.6 ± 0.5

0.5

0–1

χ² = 8.2206, df = 1

0.0041

97 (98)

28

24.8 ± 9.7

23.2

14–41

0.6 ± 0.7

0.5

0–2

χ² = 11.5315, df = 1

0.0007

97 (98)

56

33.9 ± 12.1

32.1

20–52

1.3 ± 1.8

0.8

0–5

F_(1, 14) = 113.92

<0.0001

96 (98)

84

31.5 ± 11.8

29.6

14–53

1.4 ± 1.1

1.1

0–3

F_(1, 14) = 135.63

<0.0001

96 (96)

112

25.4 ± 10.0

23.7

14–42

1.1 ± 1.4

0.8

0–4

F_(1, 14) = 111.83

<0.0001

96 (97)

140

31.6 ± 13.0

29.0

12–48

1.5 ± 1.4

1.1

0–3

χ² = 11.4286, df = 1

0.0007

95 (96)

168

38.1 ± 8.7

37.3

27–53

0.6 ± 0.7

0.5

0–2

χ² = 11.5315, df = 1

0.0007

98 (99)

196

40.0 ± 10.2

38.8

25–52

1.6 ± 1.4

1.3

0–4

χ² = 11.3442, df = 1

0.0008

96 (97)

224

37.1 ± 6.3

36.7

28–46

1.8 ± 1.0

1.5

0–3

χ² = 11.3947, df = 1

0.0007

95 (96)

252

36.4 ± 6.7

35.8

24–44

1.1 ± 0.8

1.0

0–2

χ² = 11.4456, df = 1

0.0007

97 (97)

280

39.3 ± 5.9

38.9

31–51

1.6 ± 1.6

1.2

0–4

χ² = 11.3947, df = 1

0.0007

96 (97)

308

41.4 ± 8.1

40.6

27–54

2.0 ± 1.2

1.7

0–4

χ² = 11.4627, df = 1

0.0007

95 (96)

336

39.3 ± 8.9

38.3

25–52

1.9 ± 1.5

1.5

0–4

χ² = 11.3442, df = 1

0.0008

95 (96)

364

35.4 ± 6.1

34.9

27–42

2.3 ± 1.3

2.0

0–4

χ² = 11.3947, df = 1

0.0007

94 (94)