Schmitz, G. 1997 Zum Wirtspflanzenspektrum von Pulvinaria regalis Carnard (Hom., Coccidae). [The host spectrum of Pulvinaria regalis Carnard (Hom., Coccidae).]. Gesunde Pflanzen 49: 2, 43-46.

Notes: The frequent occurrence of the coccid Pulvinaria regalis on trees and shrubs in Bonn, Germany, prompted a closer investigation of the host range of this recently introduced species. The updated list of host plants, including prior host records, now consists of 61 species, 29 genera, 24 families and 14 orders. Aesculus, Acer and Tilia are the most strongly infested genera, followed by Magnolia and Cornus. The possibility of confusing this species with Pulvinaria hydrangeae or P. betulae is discussed.