The utilization of local resources into innovative products is one of the efforts in community economic empowerment. This community service activity aims to introduce the use of citronella (Cymbopogon nardus) as a natural ingredient for anti-mosquito spray, while also providing insight into its potential development as an economically valuable product. The activity was carried out in Nagori Bahbiak, Sidamanik District, Simalungun Regency through a participatory approach consisting of observation, socialization, demonstration, and hands-on practice in producing the spray. Approximately 25 women from the community participated and successfully produced around 25 bottles of citronella-based anti-mosquito spray. The results show that the community gained practical knowledge on processing citronella into a product with both functional and economic value, and expressed enthusiasm toward the possibility of developing it into a small home-based business. This activity is expected to encourage the community to make creative and productive use of local potential as an alternative source of household income.
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