Distinguish green peach aphid, Aphis gossypii left, from cotton or melon aphid, Myzus persicae, by examining their antennal tubercles (projections on the forehead between the base of antennae) and cornicles (pairs of tubes projecting from on top the rear of the abdomen). Credit: Valerie Winemiller In Integrated Pest Management for Floriculture and Nurseries. UC ANR Publ. 3402
