In the spring and summer, aphids produce 30 to 35 living young every 10 to 12 days after birth and can reproduce without mating. That means you can have many generations in various stages of development on the same plant at one time. In the fall, males and females mate, laying eggs which will hatch the next spring. They are very adaptable to their climate. If the plant they are feeding on becomes too crowded, some of them can develop wings and fly off to another plant.
Some aphids are plant-specific, preferring a certain plant over another.
Roses are particularly susceptible to pink and green potato aphids, as are potatoes. Fruit trees and other vegetable crops bothered by the green peach or spinach aphid. Some live in the soil, sucking sap from the roots of the plants. Ants like to follow aphids around because they secrete a sweetish substance known as honey dew. Honey dew not only attracts ants but other diseases, too, like sooty mold.