Aphids
very large group of insects: the super- family Aphidoidea, belonging to the order Hemiptera . The aphids discussed here all belong to the family Aphididae [...] types of damage to a crop: Nymphs and adults extract nutrients from the plant and disturb the balance of growth hormones. As a result, the plant’s growth [...] retarded, giving rise to deformed leaves, or even, if the infestation occurs early enough in the season, the death of young plants. Retarded growth and