Greenhouse whitefly
deposited on fruit makes it sticky. Dirt adheres to the fruit, and the growth of sooty moulds ( Cladosporium spp .) is encouraged, making it unsuitable for [...] contains a high proportion of sugar, and the excess is excreted as honeydew, with larger larvae expelling large quantities. The damage that whiteflies cause [...] begins to feed on plant sap very soon after emerging. The insect is covered with a white waxy substance.