Latewood, I don't think gnats can do that. Are you sure it wasn't an early mosquito? Do you think you are a little too chemical happy?
Gen Reviewed by Gen on . fungus gnat revenge I am so excited (doesn't take much). Today I discovered that putting a shallow container of water and a few drops of dishwashing liquid (to break the surface tension) on a piece of yellow paper will catch more fungus gnats and their eggs than a white piece of paper. The yellow color water caught twice as many fungas gnats as the white. Rating: 5