Antixenotic and Antibiotic Resistance in Apium Species to Liriomyza trifolii (Diptera: Agromyzidae)

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Abstract:

The potential for resistance to the leafminer Liriomyza trifolii (Burgess) in Apium 1. species was evaluated in field trials and no-choice tests in the laboratory. In field trials with 159 accessions from throughout the world, only A. leptophyllum (Pers.) F. Muell. from Australia (A162), A. prostratum ssp. prostratumitalic> var. filiforme (A. Rich.) Kirk. from Australia (A230),and Chinese smallage 'Huang Hsin Late' from Taiwan (A16), consistently and significantly exhibited resistance as measured by an index of infestation (percentage of leaves mined per plant). Only A. leptophyllum completely lacked mining, probably due to resistance based on a filiform leaf architecture. No-choice experiments evaluating leafminer oviposition and development on promising accessions demonstrated that some accessions could reduce leafminer population growth. In these tests, only A. prostratum (A230) was not fed or oviposited upon. Although the other accessions produced no differences in developmental time from egg to pupa, numbers of mines per plant, or the ratio of mines to punctures, significant differences in numbers of pupae and adults, and the ratios of pupae to mines and adults to pupae, indicated substantial antibiosis. Incorporation of these accessions into a celery breeding program and programs for integrated and pesticide resistance management are discussed.

Document Type: Research Article

Publication date: April 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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