Cohen, E., Podoler, H., & El-Hamlauwi, M. 1994 Delayed effects of malathion on hymenopteran parasites: the role of the scale cover of diaspidid insects.. Advances in the Study of Aphytis (Hymenoptera: Aphelinidae). Intercept Limited Andover, UK

Notes: Abstract: Protective properties of diaspidid scale covers; how such properties may affect survival of natural enemies; insect resistance; lab and field studies; ramifications for IPM programs; diaspidids considered include Chrysomphalus aonidum and Aonidiella aurantii. Keywords: biological control.