My friend is managing a tiny guesthouse on an otherwise desert island in Indonesia and, as you could expect, have big problems with mosquitoes.
I plan to make some test one of those days using PET bottle as trap as described here:
Don't get it wrong: I do not plan to put it in the room (it is not efficient enough), but in the nearby swamp. It is supposed to kill slowly but steadily, so i hope that laying 2 such trap would make a difference.
My problem is that sugar is expensive.
I am planning to try with compost instead. Do you have any other idea/ experience?