Table 1.
Distribution of mosquitoes genotyped and characteristics of the study sites
| Region | Site | N | (N) identified as An. gambiae s.s. | (N) identified as An. arabiensis | (N) Resistant to Lambdacyhalothrin | (N) Susceptible to Lambdacyhalothrin | Agricultural Insecticide Pressure (H/L) in the site |
|---|---|---|---|---|---|---|---|
| Tanga | Handeni | 25 | 1 | 24 | 1 | 24 | For crop protection (L) |
| Dar es Salaam | Ilala | 25 | 9 | 16 | 3 | 22 | For horticulture and Industrial pollution/effluents (H) |
| Manyara | Babati | 25 | 12 | 13 | 0 | 25 | For cereals plantations (H) |
| Tanga | Muheza | 25 | 5 | 20 | 16 | 9 | For crop protection (L) |
| Kagera | Muleba | 25 | 21 | 4 | 15 | 10 | For coffee protection (H) |
| Morogoro | Mvomero | 25 | 0 | 25 | 0 | 25 | For cereal & sugarcane protection (H) |
| Kilimanjaro | Moshi | 25 | 0 | 25 | 25 | 0 | For coffee, cereal & sugarcane protection (H) |
| Arusha | Arumeru | 25 | 0 | 25 | 25 | 0 | For floriculture and coffee plantations (H) |
| Mwanza | Magu | 25 | 0 | 25 | 0 | 25 | For cotton protection (H) |
| Tanga | Lushoto | 25 | 25 | 0 | 0 | 25 | For horticulture (H) |
| Morogoro | Kilombero | 25 | 0 | 25 | 0 | 25 | For cereal & sugarcane protection (H) |
| Tabora | Uyui | 25 | 25 | 0 | 0 | 25 | For tobacco protection (L) |
| Mbeya | Kyela | 25 | 0 | 25 | 0 | 25 | For cereal & cocoa protection (H) |
| Dodoma | Dodoma Rural | 25 | 25 | 0 | 0 | 25 | For crop protection (L) |
(L/H): L – stands for low insecticide usage, H – stands for high insecticide usage; N = sample size.