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Report on the Control of the Harlequin Bug, Murgantia Histrionica Hahn, With Notes on the Severity of an Outbreak of this Insect in 1932

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The severe outbreak of the Harlequin bug, Murgantia histrionica Hahn, during the summer of 1932 in the Norfolk truck crop area was due in part to the mild winter of 1931-32 and to the abundance of preferred host plants in abandoned fields and in seed kale fields. The best control of this pest was obtained with sprays in which rotenone was the active ingredient in combination with a one per cent soap solution. In general, nicotine, Pyrethrum, and oil emulsion sprays were not effective for use a.gainst this insect, except at very strong concentrations.

Swallows were observed feeding on the adult insects. The egg parasite, Ooencyrtus johnsoni (How.), was found to parasitize from 35 to 55 per cent of all the Harlequin bug eggs collected during August and September.

Document Type: Research Article

Publication date: February 1, 1933

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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.
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