Struggling with mosquito bites that sting, itch, and disrupt your sleep? This reliable homemade mosquito trap, tested and trusted by many, uses the natural attractant of fermentation gases from sugar and yeast to lure and eliminate them effectively.
Once inside the inverted bottle, mosquitoes drown in the sweet syrup—simple, chemical-free, and highly efficient.
1. Cut the bottle in half using a knife and scissors, just above the middle to allow space for the liquid.
2. Boil 200ml of water in a saucepan.
3. Add 50g brown sugar and stir until fully dissolved.
4. Remove from heat once dissolved.
5. Cool the syrup to below 30°C (refrigerate to speed up).
6. Pour syrup into the bottom half of the bottle.
7. Sprinkle 1g yeast on top without stirring.
8. Insert the top half (neck down) into the bottom.
9. Secure with tape.
Your mosquito trap is complete! Place it in mosquito-prone areas like bedrooms.
Refresh the syrup every 2 weeks or when bubbles stop, as this signals the end of CO2 production that attracts mosquitoes.
Mosquitoes are drawn to the CO2 we exhale. This trap mimics that by producing CO2 through yeast fermentation in the syrup. They enter via the funnel but can't escape, eventually drowning.
For best results, deploy multiple traps around your home.
Use only brown sugar—white sugar ferments too fast and fails.
Dissolve in boiling water to form syrup.
Brewer's yeast is essential.
Cool syrup fully before adding yeast to control fermentation.
Let yeast float—do not stir.
No need for black paper wrapping; it doesn't enhance performance.
Coca-Cola bottle shape is ideal for trapping.
