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Eggs of the bollworm, Heliothis zea (Boddie), and the cabbage looper, Trichoplusia ni (Hübner), on Arizona cotton were parasitized by the eulophid Encarsia lutea (Masi). Although its rate of yearly parasitism is not high, it occurs in numbers that can be measured. In all probability mostly female parasites issue from whiteflies, Trialeurodes abutilonea (Haldeman), and T. vaporariorum (Westwood), but only males emerge from lepidopterous eggs. The parasite can stop development of fertile bollworm and cabbage looper eggs even after they are 2 days old. Virgin female parasites produce males in lepidopterous eggs.
Document Type: Research Article
Publication date: December 1, 1965
More about this publication?
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.