According to a 2020 North Carolina State Extension factsheet by James Baker, Cacopsylla tobirae nymphs "feed in new growth causing it to become puckered and distorted. The damaged leaves may form a shelter [for] the nymphs ... Signs of damage include swollen twigs and shoot dieback, pitted leaves, and fluffy, white strands secreted by nymphs as they feed."

FYI: Check leaves [both sides] and stems carefully for embedded scale insects the shape and color of orzo pasta. If embedded scales are present the distortions should be attributed to Planchonia arabidis, not to the tobira psyllid. Tobira psyllids are very small and pale green, making them a challenge to find.