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Table 1 Larvae distribution in copper treated ovitraps (10 ppm) vs control (0 ppm) placed in 21 houses in Painan City, West Sumatra, Indonesia

From: Application of copper-based ovitraps in local houses in West Sumatra, Indonesia: a field test of a simple and affordable larvicide for mosquito control

House Control Indoor pot 1 Indoor pot 2 Outdoor pot 1 Outdoor pot 2
Viable Dead Viable Dead Viable Dead Viable Dead Viable Dead
1 1 0 a a 0 24 0 1 0 3
2 a a 0 11 0 11 0 0 0 15
3 46 0 0 23 0 5 0 42 0 38
4 38 0 0 23 0 29 0 0 0 0
5 21 0 0 42 0 43 0 15 0 30
6 0 0 0 10 0 0 0 0 0 0
7 77 0 0 35 0 0 40b 481 28b 500
8 0 0 0 86 0 61 0 6 0 20
9 55 0 0 100 0 53 0 15 0 109
10 a a 0 0 0 60 0 12 0 22
11 a a 0 0 a a 0 63 a a
12 0 0 0 2 0 5 0 0 0 0
13 0 0 0 300 0 0 0 2 0 15
14 204 0 0 92 0 0 0 84 0 0
15 200 0 0 58 0 109 0 205 0 30
16 55 0 0 408 0 49 0 50 0 80
17 0 0 0 10 0 50 0 150 0 0
18 103 0 0 20 0 0 0 0 0 50
19 a a a a a a a a a a
20 75 0 0 0 0 0 0 120 0 0
21 0 0 0 92 0 0 0 0 0 65
Larva-positive pots (%) 11/17 0/17 0/19 16/19 0/19 12/19 1/20 14/20 1/19 13/19
(64.7) (0) (0) (84.2) (0) (63.2) (5.0) (70.0) (5.3) (68.4)
Total no. of larvae (mean) 875 0 0 1312 0 499 40 1246 28 977
(51.3) (0) (0) (69.1) (0) (26.3) (2.0) (62.3) (1.5) (51.4)
  1. aSpilled or damaged ovitraps (excluded from analysis)
  2. bLarvae appeared weak or dying