Popenoe, J., C. G. Roper Warwick, and R. C. Beeson, Jr. “Key Plant, Key Pests: Chinese Elm (Ulmus parvifolia): ENH1295/EP559, 7/2018”. EDIS, vol. 2018, no. 3, July 2018, doi:10.32473/edis-ep559-2018.