Dr Hydro Fungus Gnat Root Drench is a plant-safe soil sterilant that instantly kills fungus gnat maggots! You can then catch the flying adult gnats with sticky traps positioned close to the growing media.
The product is highly reactive, but breaks down to plant-safe nutrients after just a few hours of application. For this reason, it is authorised for use on organic crops. This product has a strong odour
