Myanmar Health Sciences Research Journal
Volume 28, Number 2
TITLE: Insecticides Susceptibility Profile of Anopheline Mosquitoes in Selected Areas of Kyaukme District, Northern Shan State
AUTHOR: Mya Nilar Chawsu, Yi Yi Mya, Naw Hnin Myint, Tun Tun Win, Nwe Nwe Aye, Kyaw Oo, Khin Lin & Yi Yi Myint
SOURCE: Myanmar Health Sciences Research Journal
ABSTRACT: Malaria is one of the public health problems and Anopheline mosquito plays a major role of malaria transmission in Myanmar. Vector control mainly depends on insecticide usage. The susceptibility of Anopheles minimus and Anopheles annularis to four insecticides in Kyaukme District, Northern Shan State was monitored by using the WHO standard susceptibility test. Unknown ages of wild caught blood fed female mosquitoes were exposed to discriminating dosages of insecticides DDT (4%), Malathion (5%), Deltamethrin (0.05%) and Permethrin (0.75%) for one-hour exposure period. Knockdown effect was recorded every 10 minutes and mortality scored for 24 hours after exposure. Data analysis was conducted by using LdP (log-dosage probit) line software. The results revealed that all study populations of Anopheles minimus were still susceptible to DDT (4%), Malathion (5%), Deltamethrin (0.05%) and Permethrin (0.75%) from all study population, except Hsipaw population. Anopheles annularis from Naunghkio and Hsipaw populations showed resistant to DDT (4%) and still susceptible to alathion (5%), Deltamethrin (0.05%) and Permethrin (0.075%). Kyaukme population showed susceptible to all test insecticides in the present study. It can be concluded that all study populations are still susceptible to Malathion (5%), Deltamethrin (0.05%) and Permethrin (0.075%) except DDT (4%).
SUBJECT HEADINGS: Susceptibility, Anopheles minimus, Anopheles annularis, DDT, Malathion, Deltamethrin, Permethrin