While I believe the trap could work in theory it is not a good one for a rainy climate. There was a brief rain shower the afternoon I put it outside in the target area. The top of the trap got soggy and collapsed onto the glue part. This effectively ruined the trap. Perhaps if you made it out of a wax cardboard to repel the rain or made 2 different ones. This one for indoor use and a "hardier" one for outdoor use.