Sierra SNS-203™ Concentrated Natural Pesticide Soil Drench and Foliage Spray is made up of pure Rosemary and Clove botanical extracts. The botanicals are all food grade GRAS (generally recognized as safe) materials. SNS-203™ Concentrated Natural Pesticide Soil Drench is exempt from EPA registration under minimum risk pesticides exempted under FIFRA section 25(b). SNS-203™ Kills and Repels Fungus Gnats, Root Aphids, Thrips, Shore Flies and White Flies.