Aphids are usually wingless. The wingless green peach aphid adult is pale-yellow to green. The winged migrant form has a yellowish green abdomen with a dark dorsal blotch. Both forms have a pair of tailpipe like appendages known as cornicles.
Nymphs are slightly smaller than the adult but similar in shape.
They are pale yellow-green with three, dark lines on the abdomen. The green peach aphid infests a wide range of plants. Some important hosts include cabbage and related cole crops and leafy greens, tomato, tobacco, potato, spinach, pepper, eggplant, legumes and others. Green peach aphids extract sap from plants and excrete a sweet sticky substance known as honeydew. Black sooty mold grows on the honeydew and, though not directly harming the plant, may block out sufficient light to reduce yield.