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Table 5 Percentage mortality of SENN-DDT and MBN-DDT mosquitoes (females and males) to DDT and deltamethrin following exposure to synergists ( n = number of mosquitoes tested)

From: Detoxification enzymes associated with insecticide resistance in laboratory strains of Anopheles arabiensis of different geographic origin

Colony

Treatment

n

% Mortality (± SD)

SENN-DDT

PBO (4%) + DDT (4%)

107

3.9 (± 4.7)

 

DDT (4%) only

107

13.0 (± 8.6)

 

PBO (4%) only

80

0

 

PBO (4%) + deltamethrin (0.05%)

126

83.8 (± 1.3)*

 

Deltamethrin (0.05%) only

89

25.3 (± 15.6)*

 

PBO (4%) only

80

0

 

PBO (4%) + permethrin (0.75%)

75

0

 

Permethrin (0.75%) only

72

1.3 (± 2.3)

 

PBO (4%) only

79

2.7 (± 4.6)

MBN-DDT

PBO (4%) + DDT (4%)

79

2.3 (± 2.1)

 

DDT (4%) only

71

1.3 (± 2.3)

 

PBO (4%) only

81

1.1 (± 2.0)

 

PBO (4%) + deltamethrin (0.05%)

78

70.3 (± 16.5)*

 

Deltamethrin (0.05%) only

97

2.2 (± 4.3)*

 

PBO (4%) only

81

1.1 (± 2.0)

 

PBO (4%) + permethrin (0.75%)

74

1.3 (± 2.3)

 

Permethrin (0.75%) only

73

6.7 (± 4.6)

 

PBO (4%) only

74

1.3 (± 2.3)

MBN-DDT

DEM (7%) + DDT (4%)

80

1.5 (± 2.6)

 

DDT (4%) only

72

4.0 (± 4.0)

 

DEM (7%) only

82

3.5 (± 3.7)

 

DEM (7%) + deltamethrin (0.05%)

74

46.0 (± 1.7)*

 

Deltamethrin (0.05%) only

78

16.8 (± 10.2)*

 

DEM (7%) only

82

3.5 (± 3.7)

 

DEM (7%) + permethrin (0.75%)

75

1.7 (± 2.9)

 

Permethrin (0.75%) only

75

0

 

DEM (7%) only

69

3.0 (± 2.7)

  1. * Indicates significant difference between insecticide versus synergist and insecticide.