The practice consists of covering the fruit-farm with a mesh that is more tightly weaved than the classic hail-proof net in order to isolate it from external insect attacks (especially frugivores). Developed by the French, initially against damage from the codling moth (C. Pomonella), it also proved to be effective against other insects (like brown marmorated stink bugs and the spotted wing drosophila fruit fly, and small fruit midges). Studies came up with two solutions: the first is known as single row, where each individual row is covered with the net; the second, known as single block, is where the entire plot of land is protected by a single structure.
