Phillips, J.H.H. 1961 An infestation of Comstock mealybug, Pseudococcus Comstocki (Kuw.) (Homoptera: Coccoidea) on peach in Ontario.. Proceedings of the Entomological Society of Ontario 91: 268-270.

Notes: The source of infestation appeared to be seven large catalpa trees that were growing along the road between two orchards. Pseudaphycus malinus was discovered parasitizing the mealybug.