Abstract

• The seasonal study was carried out in six areas of Hinthada District, Ayeyarwady Region, from 2018 to 2020 using descriptive field investigation method. All potential breeding sites were examined seasonally by different larval positive container types (major, minor and miscellaneous) from 50 households in each village of all study areas and the occurrence of Aedes aegypti larvae was investigated in accordance with different seasons. Seasonal variations of Ae. aegypti in key containers and key premises in all areas were compared. In different positive containers such as concrete jars, earthen pots and bamboo bowls were found to be the most positive and predominated ones for breeding sources throughout the survey period. The larval occurrences in positive containers were significantly different among six areas in accordance with different seasons. Seasonal prevalence of Ae. aegypti larvae in various containers was investigated and found to be higher in wet season than other seasons. Hence, this study revealed that wide-spread breeding of Ae. aegypti occurred in cleaned and uncovered containers, and untreated water. Information on reduction of breeding sites of Ae. Aegypti such as daily practices with covering, emptying out, changing and filtering of water containers, and awareness of vector-borne diseases namely Dengue and Dengue Haemorrhagic Fever (DF and DHF endemicity) could be contributed to local community.