Orcon FUNGUS GNAT CONTROL (7 Million Units) [Case of 9]Case of 9 Fungus Gnat Control contains Beneficial Nematodes, microscopic organisms that seek out and kill Fungus Gnat larvae that live in the soil. APPLICATION: Pour the entire contents of the container into a bucket of cool water. The amount of water is not critical. The more water you use the less concentrated the nematodes will be but will cover a larger area. Stir and let stand for 20 to 30 minutes to allow the nematode to separate from the