TABLE I. Insecticides tested, diagnostic doses, number of mosquitoes exposed and percent mortality at the diagnostic time of 30 minutes for three Aedes aegypti populations from Venezuela.
Locality | Insecticide tested | Diagnostic dose (µg/mL) | #Mosq exposed | generation (F) | Percent mortality | Status a |
Las Brisas | Malathion | 50 | 214 | F1 | 78.5 | R |
Malathion + PBO b | 50 | 100 | F2 | 93.0 | C | |
Permethrin | 15 | 122 | F1 | 2.5 | R | |
Permethrin 2X | 30 | 113 | F1 | 24.8 | R | |
Permethrin + PBO b | 15 | 100 | F2 | 100 | S | |
Deltamethrin | 10 | 201 | F1 | 52.7 | R | |
Deltamethrin 2X | 20 | 105 | F1 | 100 | S | |
Lambdacyhalothrin | 10 | 100 | F2 | 100 | S | |
Urbanización 19 de Abril | Malathion | 50 | 112 | F2 | 98.2 | S |
Permethrin | 15 | 104 | F2 | 74.0 | R | |
Cypermethrin | 10 | 102 | F2 | 100 | S | |
Nacupay | Malathion | 50 | 121 | F6 | 89.3 | R |
Permethrin | 15 | 100 | F7 | 100 | S | |
Deltamethrin | 10 | 100 | F7 | 100 | S | |
Alphacypermethrin | 10 | 100 | F7 | 100 | S | |
Lambdacyhalothrin | 10 | 100 | F7 | 100 | S |
a: R = resistance (mortality < 90%); C = resistance to be confirmed (mortality = 90-97%); S = susceptible (mortality ≥ 98%) 31 ; b: PBO = Piperonyl butoxide.