Fungus Gnats * Life span: About 3–4 weeks total. Adults live ~7 days. * Where they live/lay eggs: In the top 1–2 inches of moist soil; larvae feed on roots and decaying matter. * Infestation zone: Soil and root zone. * Reproduction trigger: Moist soil; females lay up to 300 eggs in damp potting mix. * Systemic control: Imidacloprid or dinotefuran kills larvae when they feed on treated roots. * Beneficial bugs: Steinernema feltiae nematodes and Hypoaspis miles (soil predatory mites). * Break the