No, usually not. Gnats come with over watering. You need to be more stingy with water.
I have had aphids, and mealy bugs, but have good results with this. Since I started using this I have no bug problems. http://www.bonide.com/products...
Name: Debbie Denham Springs, La. zone 8b (Zone 8b)
Awesome Karen. Thanks so much for the two links. It will be nice to have some plants already started come next spring. And that way I won't have to get too many new ones. Maybe