Frass
Frass is the sandlike by-product of insect farming, consisting mostly of insect feces along with spent feedstock, and molted exosceletons (cuticle).
Moreover, frass has important water filtering properties, while it has been found to be a valuable feed source, and biogas.
- No Waste Left Behind: Insect Frass Can Improve Soil Fertility from USDA-Agricultural Research Service
- Study Shows Insect Farming Byproduct Boosts Soil Health, Reduces Crop Damage from Arkansas Agricultural Experiment Station
- Valorisation of insect Frass as Fertiliser – an overview from from the International Platform of Insects for Food and Feed
- Frass and Furious: Unfolding the Potential of Insect Frass as Soil Fertilizer
- Plant health promoting potential of insect frass: just a soil fertiliser or much more besides?
- Insect frass fertilizer as soil amendment for improved forage and soil health in circular systems
- Insect frass composition and potential use as an organic fertilizer in circular economies
- Combining Tenebrio molitor frass with inorganic nitrogen fertilizer to improve soil properties, growth parameters, and nutrient content of Sonchus oleraceus crop