Fertilizer pellets for organic farming with insect repellent activity
Organic farming means refraining from the use of chemically synthesized pesticides and fertilizers. As a result, organically grown cabbage or rape seed are often plagued by the cabbage root fly, the common enemy of such plants, causing
great damages in crop yield.
Digestates contain valuable plant nutrients such as nitrogen, phosphorus and potassium, which are essential for plant
growth. In addition there is a number of cyanobacteria, especially filamentous cyanobacteria from the Oscillatoriales family which display proven repellent activity against the cabbage root fly. By preventing it from depositing its eggs, the fly can no longer threaten the plant. This gave rise to the idea and goal of the EcoBug project of developing a new, combined product for organic farming: digestates were to be processed to fertilizer pellets together with cyanobacteria which act as a repellent against the cabbage root fly.