Morales, C.F., & Hill, R.L. 1990 Vedalia: the New Zealand contribution (Homoptera: Coccinea: Monophlebidae).. Proceedings of the Sixth International Symposium of Scale Insect Studies, Part II. Cracow, Poland: August 6-12, 1990. Agricultural University Press Cracow
Notes: Abstract: A significant part of the population of Vedalia, used to control Icerya purchasi on citrus in California, was of New Zealand origin. Keywords: biological control.