Great enemies to Fleas, Moths, Cutworms, Weevils, Fungus Gnats, Grubs, and More! Can be stored unactivated for up to 30 days in the refrigerator. Can be used around Humans, Pets, and Plants Can be used indoors and outdoors Hose end sprayer G390 included Ice pack it's expected to be melted and warm upon arrival. Nematodes will smell fishy/rotten when no longer viable Beneficial Nematodes are great enemies to Fleas, Moths, Cutworms, Weevils, Fungus Gnats, Grubs, and More! These microscopic round worms attack over 200 species of soil pests! Simply add water and release with a watering can, hose end sprayer or other apparatus. Complete instructions included. Nematodes actively hunt for larvae, entering through natural body openings. Once inside the larvae, the nematode feed and multiply. Within a few days the pest will change color and die. The nematodes multiply and develop before leaving the old host to hunt for more pests. As the number of pests decrease, so will the nematode population. For this reason seasonal releases are recommended. Storage: Storage temperature 36-45˚F. DO NOT FREEZE Store unactivated nematodes for up to 30 days. Once activated nematodes must be released within 6 hours. Store nematodes in the dark. Environmental Conditions: Nematodes are susceptible to ultraviolet light (UV). For optimal results, the ground surface should be moist.