My wife was getting sick of the smell off my fruit fly cultures so she bought a 14oz jar of Natural Magic Odor absorbing gel, (the citrus scent) to put by my cultures. It has a vented top and smells like oranges. Anyhow, this was a couple months ago, I just put it by the cultures and forgot about it. The other night, I got curious and popped the top off it, there must have been 10,000 dead flys in it. I also noticed that there hasn't been nowhere near as many flys wandering around the house. Just thought I pass this on.