Defense Against the Green Peach Aphid and Potato Leafhopper by Glandular Trichomes of Solanum berthaultii

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The roles of tyPe A and B gladular trichomes in defense of the wild potato species, Solanum berthaultii Hawkes, agamst the green peach aphid, Myzus persicae (Sulzer), and Potato leafhopper, Empoasca fabae (Harris), were assessed. Mortality of fourth-stadium M. persicae and encasement of tarsi and labia by type A exudate increased with a rise in density and volume of type A trichomes. Tarsi coated by type B exudate were highly adhesive and extremely effective in discharging type A trichomes. Immature stages of M. persicae and E. fabae were subject to greater mortality and encasement of body parts by trichome exudate than were adults.

Document Type: Research Article

Publication date: December 1, 1981

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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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