Tobacco whitefly
larvae of whitefly need a lot of protein for growth, and thus consume a large quantity of plant sap. This contains a high proportion of sugar, and the [...] the excess is excreted as honeydew, with larger larvae expelling large quantities. The damage that whiteflies cause to a crop is the result of sucking out [...] honeydew. This can have the following consequences: If the population is very large, feeding on plant sap can affect the physiology of the plant, as a result