Black soldier fly larvae transform organic waste into sustainable fertilizer solution.
The researchers studied how black soldier fly larvae can help break down a mix of chicken manure and surplus sludge. They used metagenomic sequencing to look at the bacteria in the waste after treatment. The bacteria in the waste were similar to those found in chicken manure. The main types of bacteria were Firmicutes, Actinobacteria, Proteobacteria, and Bacteroidetes. Bacilli was the most common class of bacteria, with Pseudogracilibacillus, Virgibacillus, and Oceanobacillus being key members. Erysipelotrichales, which can be good for insects but harmful to poultry and humans, also increased in abundance. Overall, black soldier fly larvae can help manage organic waste by reducing its volume, but using the waste as fertilizer directly may have mixed results.