The marked reduetion in abundance of Quadraspidiotus Perniciosus Comstock in North America during the years subsequent to its aceidental introduction from China was correlated with its acquirement of a parasitic fauna. The most important members of this fauna are the ectoparasites, Aphytis diaspidis How. and A. mytilaspidis How., and the endoparasites, Coecophagoides kuieanae (Silv.) and Prospaltella pernieiosi Tower. P. pernieiosi, and its host, Q. Pernieiosus, presumably are native to China. Both were accidentally introduced into Australia, North America, and Brazil. P. perniciosi has been purposefully introduced into Chile, Europe, and South Africa. San Jose scale parasitization evidently caused a reduction in the incidence of infestations and enhanced the efficiency of control measures.
Document Type: Research Article
Publication date: October 1, 1960
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Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.