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Table 4 Mortality rates of An. gambiae s.l. from Magu district 24 h post-exposure to pyrethroids and DDT, January–September, 2014

From: Farmers’ pesticide usage practices in the malaria endemic region of North-Western Tanzania: implications to the control of malaria vectors

 

Long rains season

Dry season

Short rains season

Insecticide

No of mosquitoes exposed

No of mosquitoes survived

% Mortality

± SD

No of mosquitoes exposed

No of mosquitoes survived

% Mortality

± SD

No of mosquitoes exposed

No of mosquitoes survived

% Mortality

± SD

Kisumu

100

0

100 ± 0

100

0

100 ± 0

60

100

100 ± 0

Permethrin 0.75%

60

9

85 ± 0.063

60

27

54.75 ± 19.29

60

2

97 ± 0.05

Deltamethrin 0.05%

60

7

88 ± 0.062

60

14

76.25 ± 15.756

60

2

97 ± 0.05

Lambdacyhalothrin 0.05%

60

0

100 ± 0

60

17

71.25 ± 14.773

60

0

100 ± 0

Etofenprox 0.5%

60

4

95 ± 0.035

60

0

100 ± 0

60

2

100 ± 0

Cyfluthrin 0.15%

60

23

61 ± 0.115

60

7

88 ± 11.51

60

4

97 ± 0.035

DDT 4%

60

3

96 ± 0.04

60

0

100 ± 0

60

9

84 ± 0.021

Total

360

46

 

360

65

 

360

19

 
  1. SD is standard deviation: Kisumu is the susceptible laboratory strain used for reference