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Effect of Feeding and Oviposition by the Plum Curculio on Apple and Plum Fruit Abscission

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The only factor implicated in premature abscission of set ‘Stanley’ plums and ‘Golden Delicious’ apples was activity by larvae of Conotrachelus nenuphar (Herbst). Fruit abscission was most likely to take place when fruits were smaller than 30 mm diam; seed damage was not necessary for abscission to occur. Larvae in fruits that did not fall prematurely generally did not complete larval development. Fruit abscission induced by plum curculio larvae was similar to the process of mature fruit drop. Adult feeding or egg cavity preparation did not cause fruit abscission.

Document Type: Research Article

Publication date: October 1, 1977

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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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