This 5-page document is one in the Key Plant, Key Pests series. It helps identify common pests found on the Chinese elm (Ulmus parvifolia). Written by Juanita Popenoe, Caroline R. Warwick, and Richard Beeson Jr. and published by the UF/IFAS Environmental Horticulture Department, July 2018.
https://edis.ifas.ufl.edu/ep559