I put honey at the bottom of these and I've had them catch like 40, 50 flies sometimes. But it REALLY depends on the location, for example I'll have one in a certain corner and it will catch like 30, 40 flies before the one just 4 inches away from that one catches like one fly. And I've tried different locations multiple times over the years, that one corner is exponentially more effective than the spot just 4 inches away. So try different spots, many different spots if needed because once you find the perfect spot, the effectiveness of this thing skyrockets. The spot I found that worked best was in the corner of a glass enclosure I have that sticks out of my kitchen, it's like a window but it's not a window it's more of a glass case that sticks out of my kitchen, height and length of a window but it sticks out like a foot, and placing this fly trap at one corner of the enclosure works perfect. The other corners and other areas don't work anywhere near as well so again, try many spots to find the most effective spot for this trap.
Rating:
[5 of 5 Stars!]