Been using this since 2008. I knew nothing about houseplants back then, so when my false aralia was infested with fungus gnats I went to Armstrong and asked if they had anything. The first thing the lady showed me was this and I’ve used it faithfully ever since. Really great for anything that is susceptible to mealy bugs, aphids, scale, whitefly, thrips, Japanese beetle, and it even keeps ants out. Ants, I learned, are addicted (like opiates) to the excrement “honeydew” of scale, mealies, and aphids, and will actively move the bugs around to other plants in a sort of "drug operation", so that they never run out of a supply! If you see ants, chances are a plant is either too dry and/or there are mealies or scale somewhere.