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Glandular Trichomes of a Resistant Hybrid Potato Alter Feeding Behavior of the Potato Leafhopper (Homoptera: Cicadellidae)

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Abstract:

Feeding and host acceptance behavior of the potato leafhopper, Empoasca fabae (Harris), on a hybrid potato bearing glandular trichomes was examined as was the expression of resistance to field populations of E. fabae. More than 75% of nymphs given access to the resistant hybrid failed to feed; all nymphs on a susceptible commercial cultivar initiated feeding. Average duration of time to first probe on the hybrid was 14.2 min, compared with 1.2 min on the susceptible cultivar. Acceptance and feeding success on the resistant clone were greatly improved following removal of glandular trichomes. In field plots subject to natural infestations of E. fabae, populations of adults and nymphs on the hybrid clone were reduced >80% compared with those on commercial potato cultivars.

Document Type: Research Article

Publication date: October 1, 1986

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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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