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Association of the Boxelder Bug (Hemiptera: Rhopalidae) with Epicarp Lesion of Pistachio Fruits

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The boxelder bug, Leptocoris trivittatus (Say), produced epicarp lesions (EL) on developing pistachio (Pistacia vera L.) fruits. In all caged fruit clusters in the field and laboratory, boxelder bug feeding for 48-72 h caused doughnutlike, water-soaked, brown necrotic lesions. Internally, in immature fruits (April to early May), a white netting or web pattern appeared on the inner shell tissue. As shells hardened (late May), the symptoms appeared as small black spots where bugs fed. Aprotruding elicoidal microscopic stylet sheath or "spike" was sometimes found in the center of the black spots. Boxelder bugs incited EL during the growing season until early June, while the pericarp firmness was ≤1.8kg force.

Document Type: Research Article

Publication date: August 1, 1988

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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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