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Table 4 Results obtained for Culex quinquefasciatus (n = 42 nights) in the experimental huts in Moshi

From: Laboratory and experimental hut evaluation of a long-lasting insecticide treated blanket for protection against mosquitoes

Hut Treatment

Unwashed control

Washed control

Unwashed LLIB

Washed LLIB

Unwashed ITB

Washed ITB

Olyset net

Initial dose of permethrin

0 mg/m2

 

2000 mg/m2

2000 mg/m2

500 mg/m2

500 mg/m2

1000 mg/m2

Number of washes

0

5

0

5

0

5

0

% volunteer body cover (95% CI)

81 (77–85)

83 (80–87)

79 (74–83)

78 (73–82)

79 (72–85)

79 (72–85)

100

Total females caught

62

79

59

53

60

58

62

Females caught/night

2

2

1

1

1

1

2

Total females in verandah and exit traps

25

27

34

25

31

26

50

Exophily (%)

40ac

34a

58c

47ac

52ac

45ac

81b

95% Confidence limits

25-57

22-49

42-72

36-59

35-68

28-63

66-90

Total females blood fed

45

67

36

27

29

22

7

Blood fed (%)

73a

85b

61a

51ad

48ad

38cd

11e

95% Confidence limits

57-84

74-91

43-76

36-65

34-63

25-53

5-25

Blood feeding inhibition (%)

-

-

16

40

34

55

85

Total females dead

0

1

6

5

5

7

4

Overall mortality (%)

0a

1b

10bcd

9bcd

8d

12cd

6bd

95% Confidence limits

-

0-10

4-24

3-25

3-21

6-23

2-17

Corrected for control (%)

-

1

10

9

8

12

6

Unfed mortality

0

0

8 (1–53)

26 (9–54)

15 (4–43)

16 (6–37)

19 (10–34)

Blood fed mortality

0

0

0

4 (0–25)

0

0

0

  1. Numbers in the same row sharing a letter superscript do not differ significantly (P > 0.05).