Table 1.
Survey results regarding commercial household insecticide use within 150 households in three suburbs of the city of Mérida, Mexico.
| Characteristic | No Houses | Total (%) or Mean (SD) |
|---|---|---|
| Brand of insecticide (any kind) most used (n = 148) | ||
| None used | 9 | 6.1 |
| Killer | 10 | 6.8 |
| Raid | 53 | 35.8 |
| Baygon | 62 | 41.9 |
| H24 | 12 | 8.1 |
| Ortho | 2 | 1.4 |
| Type of insecticide most commonly used (n = 141) | ||
| Aerosol | 122 | 86.5 |
| Plug-in | 9 | 6.4 |
| Coil | 9 | 6.4 |
| Other | 1 | 0.7 |
| Active ingredients of most common aerosolized insecticides (n = 109) | ||
| Tetramethrin, allethrin, and phenothrin | 59 | 54.1 |
| Cypermethrin and imiprothrin | 24 | 21.2 |
| Cyfluthrin and imiprothrin | 9 | 17.0 |
| Cyfluthrin | 5 | 9.4 |
| Tetramethrin and phenothrin | 5 | 9.4 |
| Permethrin, proxopur, and prallethrin | 4 | 3.7 |
| Tetramethrin, proxopur, and fenvalerate | 2 | 1.8 |
| Unidentified | 1 | 0.9 |
| Other additional insecticides used regularly? (n = 141) | ||
| Yes | 71 | 50.4 |
| Secondary insecticides commonly used (n = 66) | ||
| Aerosol | 24 | 17.8 |
| Plug-in | 18 | 13.3 |
| Coil | 18 | 13.3 |
| Other | 6 | 4.4 |
| Number of times purchased (within the past 3 months) | 135 | 2.9 (3.0) |
| Average use (times per day) (n = 141) | ||
| Not used every day | 45 | 31.9 |
| 1–3 | 89 | 63.1 |
| 4–6 | 6 | 4.3 |
| 7–9 | 1 | 0.7 |
| 10+ | 0 | 0.0 |
| Means of application in the home (n = 122) | ||
| Applied as a space spray | 56 | 45.9 |
| Applied as a surface spray | 64 | 52.4 |
| Applied directly to mosquitoes | 2 | 1.6 |