ARBICO Organics Beneficial Nematodes are microscopic, non-segmented roundworms that occur naturally in soil throughout the world. They are used in agriculture and gardening to control the soil developing stages of many common plant pests including beetle grubs, borers, weevils, fungus gnats and more. They are also loved by pet owners and lawn lovers to help control fleas, flies and grubs. Beneficial Nematodes are applied to the soil with water and attack pest larvae with results in just a few weeks. ARBICO Organics offers 6 different strains (plus 3 OMRI listed), so you can select the right control for your situation. They are recommended for use in spring and fall for continued control throughout the pest lifecycle. Beneficial nematodes can be used around and will not harm mammals, aquatic life, birds, reptiles or amphibians. For more information visit ARBICO-Organics.com.