Our pot plants had become infested with these tiny flying insects and it had got to the stage that they were landing in our food and drinks. Something had to be done. After reading about these little sticky catchers on Amazon I had to try it. And they work perfectly. Even now, 4 weeks later they are still trapping them although they have dramatically fallen in numbers as the new ones emerging from eggs are being trapped before they have a chance to propagate again! Very easy to use and you receive a decent amount of them. I have a lot of pot plants but still have plenty of sticky catchers left.