Table 3 Mortality rates of adult Aedes aegypti and Ae. albopictus from Bangui and neighbourhoods 24Â h after exposure to insecticides
Species and site | % mortality (no. of mosquitoes assayed) | |||||||
|---|---|---|---|---|---|---|---|---|
Organochlorine | Pyrethroid | Carbamate | Organophosphate | |||||
4% DDT | Status | 0.05% deltamethrin | Status | 0.1% propoxur | Status | 0.5% fenitrothion | Status | |
Ae. aegypti | ||||||||
 IPB | 71.5 (88) | R | 95.4 (88) | RS | 99 (100) | S | 100 (88) | S |
 Sica 1 | 78 (100) | R | 95.6 (93) | RS | 100 (100) | S | 100 (100) | S |
 Lakouanga | 79.5 (93) | R | 98 (100) | S | 100 (100) | S | 100 (100) | S |
 Ouango | 93.4 (92) | RS | 100 (50) | S | 98 (50) | S | 100 (100) | S |
 Ngongonon 3 | 94 (100) | RS | 97 (100) | RS | 100 (99) | S | 100 (88) | S |
 92 Logements | 78 (50) | R | 100 (100) | S | 100 (50) | S | na | – |
Ae. albopictus | ||||||||
 IPB | 96.2 (79) | RS | 100 (100) | S | 100 (75) | S | 100 (89) | S |
 Sica 1 | 80.2 (96) | R | 87 (100) | RS | 99 (98) | S | 100 (93) | S |
 Lakouanga | 95.7 (71) | RS | 99 (89) | S | 100 (94) | S | 100 (100) | S |
 Ouango | 90 (97) | R | 99 (97) | S | 100 (100) | S | 100 (100) | S |
 Ngongonon 3 | 100 (80) | S | 100 (93) | S | 100 (84) | S | 96.4 (84) | RS |
 92 Logements | 41 (100) | R | 94 (100) | RS | 94 (50) | RS | 100 (100) | S |
Reference strain | 100 (100) | Â | 100 (100) | Â | 100 (100) | Â | 100 (100) | Â |