Mendel, Z., Blumberg, D., & Wysoki, M. 1992 Biological control of four Homopterans in Israeli horticulture: achievements and problems.. Phytoparasitica 20: 45S-49S.

Notes: Abstract: Four phloem-feeding homopterans on citrus and avocado discussed; among them are three scales: Icerya purchasi, Protopulvinaria pyriformis and Planococcus citri. Keywords: biological control.