de Villiers, E.A. 2001a Pulvinaria psidii (Cockerell). Guava scale.. Pests and Beneficial Arthropods of Tropical and Non-citrus Subtropical Crops in South Africa. ARC-Institute for Tropical and Subtropical Crops Nelspruit, South Africa 525 pp.
Notes: Historical review, hosts, brief field description, and distribution of this species.