The bottle itself needs a little preparationjust cut off the top portion and insert it upside down.

The secret to the trap is the mixture that goes inside.

Boil some water, add a little sugar, cool the mixture, and add brewer’s yeast.

The yeast produces CO2 as it eats the sugar, which attracts the mosquitoes.

It’s important to cool the water so you don’t melt the plastic bottle or kill the yeast.

The percentage of mosquitoes that fly out again from the trap is ridiculously low.

Plastic Bottle Mosquito Trap| Instructables

Image byFilippo.