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Microscopic Examination of Tarnished Plant Bug (Heteroptera: Miridae) Feeding Damage to Strawberry

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Light and scanning electron microscopy were used to assess feeding damage caused by tarnished plant bug, Lygus lineolaris (Palisot de Beauvois), to strawberries (Fragaria × ananassa Duchesne). Holes found in strawberry achenes after feeding were consistent with the size and shape of tarnished plant bug stylets. Insects observed while feeding during early fruit development stages (i.e., anthesis to petal fall) repeatedly penetrated achenes with their stylets. In later stages of fruit development, feeding sites changed to receptacle tissue, although usually near an achene. Achene injury during early fruit development stages is the most likely cause of the apical seediness malformation commonly associated with tarnished plant bug. Feeding during later developmental stages probably results in more localized damage, including creases and indentations.

Document Type: Research Article

Publication date: April 1, 1993

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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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