Aphids
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 [...] throughout the world. Aphids form a single, very large group of insects: the super- family Aphidoidea, belonging to the order Hemiptera . The aphids discussed [...] the progeny of a single female is genetically identical to the mother. In other words, they are clones. Because there is no genetic recombination, different