Cotton aphid
The cotton aphid ( Aphis gossypii ) is an extremely polyphagous aphid found on more than 700 plant species. Crop plants attacked by this aphid include cotton [...] the crop and its fruit sticky. Black fungal moulds ( Cladosporium spp.) grow on this honeydew, contaminating fruit and ornamental crops and rendering them [...] aphids by the colour of the two cornicles (siphunculi). These cornicles are always black, whatever the body colour, which can vary widely, from light yellow