In agriculture, also the chitosan of the black soldier fly amends the soil for plant disease control due to its ability to control the population of micro-organisms and nematodes; as well as a casing to improve seed resistance.
As a biopesticide, this insect has proven to have valuable effects in terms of its properties against nematodes affecting plant roots, especially as certain soil fumigants cannot be used against nematodes according to European legislation.
The same applies to livestock farming, since this insect increases the immunity of farm animals due to its bactericidal value.
Protein hydrolysates, in the form of amino acids and peptides, are also often used in agriculture, especially in intensive and fruit crops. They are often classified as bio-stimulants, because with a relatively low dose they achieve a positive reaction in crops. And we are seeing that their use is becoming more and more widespread for those parts of the crop cycle where an extra supply of energy is of interest for higher profitability.
Bioconversion of the black soldier fly into bio-residue generates a fertiliser or compost which is the result of complete or partial digestion of the larval feeding substrate. If the concentration of nitrogen, phosphorus and potassium to carbon ratio is high, it is considered fertiliser; if the ratio is low and well digested, it is considered compost.
European regulations have yet to address more extensive use of these larvae, but few researchers doubt that the black soldier fly will soon be a strategic factor in the agri-food industry.