Yellow rose aphid
cycle, with both winged and wingless forms of adults and a great variety in colour. In greenhouses, reproduction takes place by parthenogenesis, with unfertilized [...] sufficient protein. The excess sugar is secreted in the form of honeydew, making the crop and its fruit sticky. Black sooty moulds grow on this honeydew [...] generations of females. Aphids moult four times before reaching adulthood. With each moult they shed white skin, betraying their presence in the crop. The