Distribution on Mosquito Larvae at Various Breeding Sites in Village Tanjung Sari Medan Selayang Subdistrict Medan

: Mosquitoes are small insects that act as vectors of disease in humans. Vector infectious diseases due to mosquitoes are dengue fever, chikungunya, yellow fever, encephalitis, filariasis, and malaria. This research was conducted to determine the distribution of mosquito breeding sites in residential homes in Tanjung Sari Village, Medan Selayang District. A total of 100 residents' homes were visited and inspected for breeding places for mosquito larvae inside and outside the house from October 2017 to November 2017. Mosquito larvae encountered were examined using the single larva method and identified. The results of this study found 40 houses there are mosquito breeding places. Mosquito breeding sites are found, namely: water dispenser reservoirs, buckets, puddles, bathtubs, barrels, flower vases, water reservoirs, drums, and used cans. The most mosquito breeding sites are in the reservoir of water dispenser by 19%, followed by buckets and puddles of 5% each, bathtub 4%, barrels and flower vases respectively 2%, water reservoirs 2%, and used cans respectively 1%. The most frequently encountered species are Aedes aegypti 33 breeding sites, followed by Culex sp 5 breeding sites, only in standing water outside the house and 2 Aedes albopictus breeding sites, in the flower vase outside the house. Mosquito breeding sites are found distributed inside and out side the house.