The Pickleworm: Laboratory Rearing and Artificial Infestation of Cucumhers

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A procedure was developed for rearing Diaphania nitidalis (Stoll) in the laboratory and for establishing artificial infestations on cucumber plants. From 24 to 57% of the larvae survived when they were placed on the growing tips of ‘Addis’ cucumber plants inside a screenhouse; 29–57% of those were recovered from the fruit. A system of visually rating plant damage from 1 to 5 (5 = heavily damaged) was developed for use in screening cucumber lines for resistance to pickleworm damage. The correlation coefficient between infestation levels and plant damage ratings for all plants tested was 0.783 (P=0.01). About 120 larvae/plant were required to produce a damage rating of 4 on mature Addis cucumber plants.

Document Type: Research Article

Publication date: April 1, 1979

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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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