We used a couple of the gold stick fly traps at an outdoor party in conjunction with some FBG liquid traps(please see our other review). The sticks caught only half a dozen flies each in the same time (a week) that the FBG traps caught literally hundreds, so we were delighted with the latter but not so happy with the gold stick (which are VERY sticky BTW; watch out you don't touch them). One further annoyance was the little packet of 'fly scent' that you have to open and drip onto the tubes. Those packets are also sticky and hard to avoid getting stuck to your fingers. There should be a better way of supplying the bait.