Aphids
throughout the world. Aphids form a single, very large group of insects: the super- family Aphidoidea, belonging to the order Hemiptera . The aphids discussed [...] plants in several ways, and the damage can vary depending on the species of aphid and the type of plant being attacked. The following are common signs of [...] Aphids feed on the sap of plants, which can cause the leaves to turn yellow or become distorted. The damage is often more pronounced on the younger leaves