The water and ethanol extracts of Stemona and other varieties have killing effects on mosquito and fly larvae, head lice, clothing lice and bedbugs, and the ethanol extract is more effective than the water extract.

Suggestion: generally use 50% Stemona tincture (Stemona Stemona's soaking solution in alcohol) or other pesticides, and soak 20 g Stemona Stemona in 50% alcohol 100 ml for 48 hours. After filtering, add alcohol to 100 ml.