Black bean aphid
black bean aphid, Aphis fabae , is widespread in temperate regions, where it is a serious economic pest of beans. It is highly polyphagous, and attacks [...] sap to get sufficient protein. The excess sugar is secreted in the form of honeydew, making the crop and its fruit sticky. Black moulds grow on this honeydew [...] honeydew, contaminating fruit and ornamental crops. At the same time, photosynthesis in the leaves is reduced, affecting production. Life cycle and appearance