1. THE SUSCEPTIBILITY OF AE.AEGYPTI TABLE 5. RESULT OF SUSCEPTIBIL...

3.1.3. The susceptibility of Ae.aegypti Table 5. Result of susceptibility against Ae.aegypti with insecticide impregnated test paper Evaluation mortality No Insecticide name, concentration % rate %) Pyrethroid 1 Deltamethrin 0.05% 27 Resistance 2 Permethrin 0.75% 57 Resistance 3 Lambda-cyhalothrin 0.05% 31 Resistance 4 Alpha-cypermethrin 42 Resistance 30mg/m

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5 Cyfluthrin 15% 78 Resistance 6 Pyrethroid -Control 100 Susceptibility Organophosphates 7 Pirimiphos-methyl 0.25% 98 Susceptibility 8 Malathion 5% 100 Susceptibility 9 Organophosphate -Control 100 Susceptibility Carbamate 10 Propoxur 0.1% 98 Susceptibility 11 Carbamate -Control 100 Susceptibility Organochlorine 12 DDT 4% 99 Susceptibility 13 Clo- control 100 Susceptibility The results in Table 5 was presented Ae.aegypti collected in Dien Khanh district, Khanh Hoa province was resistant to 5 common insecticides of pyrethroid group (alphacypermethrin, deltamethrin, lambda cyhalothrin, permethrin and cyfluthrin) with the rate of mosquitoes. death is only 27- 78%. However, Ae.aegypti is still susceptibility to pirimiphos-methyl and malathion of organophophates group, and to propoxur of carbamate group and DDT insecticide of organochlorine group with mortality rate from 98 % - 100%.