Fighting insect-borne diseases and enriching urban agricultural land by using molasses: a common by-product from sugar factories This innovation allows the use of one single technology to address both health issues and agricultural productivity. Researchers at the Ifakara Health Institute will create a cheap CO2 production line through fermentation of molasses, a sugar production by-product. This approach not only establishes disease vector surveillance and control, it can also use the fermentation residues to enrich urban agricultural lands.