DIY Mosquito Trap
Cut the bottle in two as shown, a little more than halfway from the bottom.
Let the sugar dissolve completely in the boiling water. Allow syrup to cool to the touch.
Pour cool syrup into bottom of plastic bottle.
Sprinkle the dry yeast on top of the syrup so that the yeast floats on top. DO NOT STIR.
Invert the top part of the bottle inside the bottom half and secure the two pieces together with a piece of duct tape.
Place the trap where mosquitos are problematic, empty and refill the syrup mixture every two weeks or when bubbles no longer form.
Source by: padf.org