Aphids
large group of insects: the super- family Aphidoidea, belonging to the order Hemiptera . The aphids discussed here all belong to the family Aphididae, a family [...] markings or stripes on their bodies. Movement: Aphids are slow-moving and tend to cluster on the undersides of leaves, where they feed on plant sap. They may [...] extract nutrients from the plant and disturb the balance of growth hormones. As a result, the plant’s growth is retarded, giving rise to deformed leaves,