Abstract

The current direction of development is the Green Deal, the main objective of which is to create a sustainable and modern economy without harming the environment. In order to avoid the negative effects of intensive farming, various options for sustainable agriculture are often proposed such as partially replacing synthetic fertilizers and replacing chemical plant protection measures with biological ones [1]. Residues from other agricultural branches can be used as an alternative raw material to produce fertilizers. The current trends in insect breeding, which are gaining wider applicability and legalization for use in the food industry, also create opportunities for the development of waste treatment methods. In Lithuania, the cultivation of insects is developing rapidly, which means that the amount of frass will also grow rapidly, so finding effective ways to use it are essential.