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Table 2 Resistance of larvae to deltamethrin, DDT and bendiocarb

From: Insecticide resistance mechanisms associated with different environments in the malaria vector Anopheles gambiae: a case study in Tanzania

Area

Pop

Deltamethrin

DDT

Bendiocarb

  

LC50 (95% CI)

RR50 (95% CI)

LC50 (95% CI)

RR50 (95% CI)

LC50 (95% CI)

RR50 (95% CI)

Lab strains

KIS

6.8 (2.6-10.5)

1

407.6 (284.7-786.8)

1

29.1 (20.5-41.6)

1

 

IFA

22.9 (21.2-24.8)

3.8 (2.3-8.1)

135.2 (115.9-155.1)

0.3 (0.2-0.4)

29.6 (23.7-36.5)

1.0 (0.9-1.2)

Urban

ILA

49.3 (39.5-60.3)

7.3 (5.7-15.1)

738.0 (582.2-1011.0)

1.8 (1.3-2.0)

73.5 (50.4-132.0)

2.5 (2.5-3.2)

 

TEM

104.6 (70.0-213.0)

15.4 (20.2-26.7)

832.5 (654.1-1154.0)

2.0 (1.5-2.3)

42.9 (31.8-61.5)

1.5 (1.5-1.5)

 

KIN

67.7 (50.4-101.3)

10.0 (9.6-19.2)

722.8 (594.0-922.7)

1.8 (2.1-1.2)

82.5 (60.1-137.2)

2.8 (2.9-3.3)

Non-polluted

ZEN

27.0 (17.6-36.6)

4.0 (3.4-6.7)

655.9 (518.9-886.3)

1.6 (1.0-1.8)

43.6 (27.4-83.9)

1.5 (1.3-2.0)

 

KIL

27.0 (16.9-38.8)

4.0 (3.7-6.4)

773.5 (651.7-930.6)

1.9 (1.2-2.9)

58.9 (39.0-111.4)

2.0 (1.9-2.7)

 

MUH

30.4 (21.6-39.5)

4.5 (3.7-8.2)

633.8 (503.6-847.4)

1.6 (1.0-1.8)

63.0 (41.0-125.6)

2.2 (2.0-3.0)

Agriculture

RUN

34.6 (26.9-45.0)

5.1 (4.3-10.3)

175.6 (147.9-203.4)

0.4 (0.3-0.5)

37.5 (29.8-47.1)

1.3 (1.1-1.5)

 

KIK

103.4 (83.5-136.8)

15.2 (13.0-31.8)

172.0 (132.1-213.2)

0.4 (0.3-0.5)

103.4 (83.5-136.8)

3.5 (3.3-4.1)

 

KAW

30.0 (18.2-49.8)

4.4 (4.3-6.9)

164.6 (132.3-197.6)

0.4 (0.2-0.5)

34.8 (26.9-45.6)

1.2 (1.1-1.3)

  1. LC50: lethal concentration for 50% of individuals (μg/L). RR50: resistance ratio based on LC50 values. RR50 values with CI95 intervals not overlapping those of both susceptible strains are shown in bold. Bioassays were performed on Anopheles gambiae sensu lato larvae.