If these places become crowded, they will scatter out to the undersides of the leaves and leaf petioles. They use their sucking mouthparts to feed on sap. The sap is changed in the body to honeydew and the honeydew is given off as droplets. Each nymph surrounds itself with a small puddle of smear of honeydew, which reflects light and flickers in the sunlight. There are five immature stages.
Nymphs get wing pads at the fifth molt.
Three generations occur per year. The second and third generation of adults are smaller and lighter colored than those of the first generation. The females of later generations do not lay eggs on bark but deposit them along the midrib on the leaf undersides of place them in the notches at the edges of the leaves. Overwintering adults are produced in the fall. Monitoring In the prebloom period, use beating tray early in the morning to sample adults.