Insect Frass? is insect poop (like guano or castings), but unlike bats or birds, Insect Frass? actually comes from plants. In all natural ecosystems insects feed on and digest vegetation, and give it right back to the soil in the form of nature’s perfect plant food, Insect Frass?! It is an all natural plant food for rooting, vegetative and flowering stages. Insect Frass? naturally contains all the macro and micro nutrition plants require. Insect Frass? is NOT a pesticide. Insect Frass? is NOT a fungicide. Insect Frass? will NOT put insects into your garden. Give your plants all the benefits of Insect Frass?, without the bugs!