Walde, S.J., Luck, R.F., Yu, D.S., & Murdoch, W.W. 1989 A refuge for red scale: the role of size-selectivity by a parasitoid wasp.. Ecology 70(6): 1700-1706.

Notes: Abstract: A physical refuge (an area where mortality due to parasitism is very low) is populated mainly by small specimens; however, size-selectivity accounted for only about 10% of the observed difference in parasitism rate of Aonidiella aurantii by Aphytis melinus. Keywords: biological control.