Nature's Care Gnat Eater (Beneficial Nematodes) Our Gnat Eaters are tiny, living organisms called nematodes (Steinernema Feltiae) that seek out and kill annoying Fungus Gnats and Thrip Natural control of pests in your indoor and outdoor potted plants, or in your raised beds Unique easy to mix formula, just mix into water and pour onto your plants REFRIGERATE UPON ARRIVAL; We promise to deliver them alive quickly, make sure you refrigerate them and use within 7 days of receipt Not sold in AK or HI