Table 4. Time in minutes for 25% (ET25), 50% (ET50), and 75% (ET75) of mosquitoes to escape treated chambers containing different TFT concentrations.
Mosquito species | Concentration (%) | Noncontact (min) | Contact (min) | ||||
---|---|---|---|---|---|---|---|
ET25 | ET50 | ET75 | ET25 | ET50 | ET75 | ||
Ae. aegypti | 0.00852 (LC50) | - | - | - | 8 | - | - |
(USDA) | 0.01274 (LC75) | 19 | - | - | 7 | 20 | - |
0.03412 (LC99) | 11 | - | - | 3 | 8 | - | |
0.06824 (DC) | 6 | - | - | 7 | - | - | |
An. minimus | 0.00423 (LC50) | 2 | 6 | - | 2 | 5 | 13 |
(DDC) | 0.00760 (LC75) | 5 | 12 | - | 2 | 8 | 18 |
0.03191 (LC99) | 4 | 9 | - | 3 | 8 | - | |
0.06382 (DC) | 2 | 6 | - | 3 | 9 | - | |
An. dirus | 0.00409 (LC50) | 5 | 12 | 21 | 4 | 10 | 25 |
(TMMU) | 0.00489 (LC75) | 1 | 4 | - | 4 | 7 | - |
0.00754 (LC99) | 5 | 11 | 19 | 9 | 15 | - | |
0.01508 (DC) | 2 | 3 | - | 4 | 7 | - |
(-) Not applicable as too few mosquitoes escaped from chambers precluding escape time (ET) calculation.
LC, lethal concentration; DC, discriminating concentration.