I have a mulberry tree next to my driveway and for six miserable weeks each summer, I have berries dropping all over the place. Of course, the flies eventually show up to feast on them. This year was particularly bad, and we even had a horde of moths show up. It got so bad that when we would drive up at night, we had to drive through a cloud of insects, which is when I decided to buy this Flowtron product. I have had similar products before and they all seem to work pretty much the same. I mounted this one about four feet high near the driveway and turned it on. It instantly attracted the moths and within a day or two, they were no longer a problem. The flies were a bit harder to get rid of, because they hatch new flies every week or so. But this product thinned out their numbers to an acceptable level until the berries stopped falling. Next year I will put this in place early and hope to prevent the insect explosion that I experienced this year.