Home >> Journal of Economic Entomology, Volume 105, Number 3, Pages 739-1106

Costs of Insecticide Resistance in Cydia pomonella (Lepidoptera: Tortricidae)

Authors: Konopka, Joanna K.; Scott, Ian M.; McNeil, Jeremy N.

Source: Journal of Economic Entomology, Volume 105, Number 3, Pages 739-1106 , pp. 872-877(6)

Publisher: Entomological Society of America

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Abstract:

The obvious benefits associated with insecticide resistance for pest species may come at a cost to other life-history traits. In this study, we compared the larval and pupal developmental times, pupal mass wing surface area and wing fluctuating asymmetry (FA) in insecticide resistant and control strains of codling moth, Cydia pomonella (L.) (Lepidoptera: Tortricidae), collected from apple (Malus spp.) orchards in central Canada. Resistant strains had significantly longer larval developmental times and lower pupal masses compared with the susceptible strain. Although the forewings of resistant moths were smaller in resistant than control strain, no difference in wing FA was detected. Longer developmental times could increase exposure time to natural enemies, and reduced adult size could affect longevity and total reproductive output.

Keywords: codling moth; insecticide resistance; fitness trade-off

Document Type: Research article

DOI: http://dx.doi.org/10.1603/EC11342

Publication date: 2012-06-01

More about this publication?
  • 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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