Down To Earth Insect Frass 3-1-2 2lbIn Store Location: @B9 Down To Earth Insect Frass 2lb An all natural fertilizer made through sustainable insect farming and derived from the larvae manure and exoskeletons of black soldier flies. The larvae are raised on pre consumer food waste collected from local grocery stores, produce distributors and food processors. After harvesting, they are turned into a renewable source of high value protein for animals and beneficial nutrients for plants.