Predator and Parasitoid Interaction with Aphid-Resistant Potatoes to Reduce Aphid Densities: A Two-Year Field Study
Authors: Obrycki, John J.; Tauber, Maurice J.; Tingey, Ward M.
Source: Journal of Economic Entomology, Volume 76, Number 3, June 1983 , pp. 456-462(7)
Publisher: Entomological Society of America
Abstract:Mechanical exclusion experiments demonstrated that Naturally occurring aphid predators (primarily Coccinellidae and Chrysopidae) and parasitoids (primarily Aphidiidae) produced >65% reduction in aphid densitieson Solanum tuberosum L. x S. berthaultii Hawkes, F3 hybrids bearing different densities of glandular trichomes. In the absence of natural enemies, aphid resistance was directly related to trichome densities. A similar relationship was observed when predator sand parasitoids were present, but aphid densities were lower on all potato clones. These results indicate that biological control and plant resistance are compatible and complementary tactics in integrated pest management on potatoes. Because of the action of predators and parasitoids, potato clones bearing moderate rather than high densities of glandular pubescence should be considered for long-term pest management.
Document Type: Research Article
Publication date: 1983-06-01
- 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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