The Economic Viability and Social Acceptability of Black Soldier Fly Larvae Frass as a Substitute for Chemical Fertiliser in Agriculture in Cameroon

The global adoption and recognition of eco-friendly black soldier fly larvae frass as a sustainable substitute for inorganic fertiliser is increasing rapidly, particularly in sub-Saharan Africa, showcasing its innovation. This study aimed to assess the economic feasibility of substituting synthetic fertiliser with black soldier fly larvae (BSFL) frass, as well as to examine the attitudes of urban farmers towards the usage of BSFL frass. The economic data was collected through a cost-benefit ratio analysis and return on investment research. A total of 150 questionnaires were distributed to selected urban farmers in the central region of Cameroon in order to collect social data. The findings revealed that the utilisation of black soldier fly larvae frass yielded the greatest Return on Investment, profit margin, and Cost-Benefit ratio in comparison to commonly used inorganic fertilisers such as NPK, Urea, Yara, and surface fertilisers. The idea of using frass as a replacement was considered acceptable, while there are some worries that can be gradually eliminated via awareness and further investigation into the ability of crops grown on frass to transmit plant diseases. This study confirms the effectiveness of using Black Soldier Fly Larvae (BSFL) as a sustainable method for managing waste. The products derived from BSFL, such as protein, biodiesel, and manure, are environmentally friendly, economically feasible, and socially acceptable for use in Cameroon and Sub-Saharan Africa as a whole.