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Table 1 Delayed 24-hour mortality rates of susceptible Cx. quinquefasciatus S-Lab and OP-resistant Cx. quinquefasciatus after a 30-minute exposure to control and Inesfly(r) treated surfaces using WHO bioassay cones.

From: Efficacy of an insecticide paint against insecticide-susceptible and resistant mosquitoes - Part 1: Laboratory evaluation

Culex% Delayed mortality 24 h (N = 60)

Control 1 No paint

Control 2 Control Paint

Cement 1 Kg/6 m2

Cement 1 Kg/12 m2

Stucco 1 Kg/6 m2

Stucco 1 Kg/12 m2

Softwood 1 Kg/6 m2

Softwood 1 Kg/12 m2

Plastic 1 Kg/6 m2

Plastic 1 Kg/12 m2

   

Porous Surfaces

Non-Porous Surfaces

T0 OP-Susceptible

0.5

0.4

100†

100†

100†

100†

100†

100†

100†

100†

T0 OP-Resistant

2

2.2

100†

15.7†

100†

87.3†

100†

100†

100†

100†

T6 OP-Susceptible

2.2

2.9

3.1

1.7

100†

96.7†

100†

100†

100†

100†

T6 OP-Resistant

1.6

3.3

0

0

31.7†

3.3

100†

100†

100†

100†

T12 OP-Susceptible

0

2.1

2

0

91.4†

20.3†

100†

100†

100†

100†

T12 OP-Resistant

1.5

1

4.1

5.3

20.3†

5.3

100†

93.2†

100†

100†

  1. Control 1 = No paint; Control 2 = Paint without insecticide at 1 Kg/6 m2. Culex = Cx. quinquefasciatus; T0 = 0 months after treatment, T6 = 6 months after treatment, T12 = 12 months after treatment, N = sample size per surface tested; (-) females had already died during the first hour. † = significant differences from control (P < 0.05).