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 [...] and adults 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 [...] and rendering them unmarketable. At the same time, photosynthesis in the leaves is reduced, affecting production. The aphid’s saliva can induce strong ‘allergic’