Observational analysis shows papaya leaf extract kills mosquito larvae effectively, with NaCl suggesting minor enhancement.
Crude extract of soursop (Annona muricata) and papaya (Carica papaya) leaves had been tested to kill mosquito larvae (Culex sp) during August 26-27th, 2025 at Ecology Laboratory, Biology Department, Sriwijaya University, Indralaya, South Sumatra. Addition of 0.5 g salt (NaCl) also tested as a treatment to increase of larvae mortality. It was found that both soursop and papaya crude extract leaves kill mosquito larvae ; 58 % for soursop leaves and 100 % for papaya leaves. Addition of 0.5 g NaCl could increase mortality of larvae at soursop leaves treatment, but it is not significant statistically.
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Assalam et al. (2025) studied this question.
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