Authors: Kennedy, G. G.; Abou-Ghadir, M. F.

Source: Journal of Economic Entomology, Volume 72, Number 5, October 1979 , pp. 754-757(4)

Publisher: Entomological Society of America

Abstract:

In greenhouse studies, apterous turnip aphids, Lipaphis erysimi (Kaltenbach), reared on 'Shogoin' turnip had a longer prereproductive period, produced fewer progeny, and were smaller than their counterparts reared on 'Purple Top White Glob' (PTWG) turnip. Similarly, alate aphids reared on radish and placed on turnip as prereproductive adults, produced fewer progeny on Shogoin than on PTWG. Experiments in which apterous aphids were reared on one cultivar and transferred to the other as prereproductive adults suggested that the resistance of Shogoin operates primarily against the reproductive adult turnip aphid.

In 3 field plantings, turnip aphids were 3X more abundant on PTWG than on Shogoin in the one planting in which well-established aphid populations were observed. The green peach aphid, Myzus persicae (Sulzer), and the cabbage aphid, Brevicoryne brassicae (L.), were significantly more abundant on Shogoin than on PTWG in one planting, but not in 2 others. Larvae of the diamondback moth, Plutella xylostella (L.), were significantly more abundant on Shogoin than PTWG in 2 of the 3 experimental plantings.

Document Type: Research article

Publication date: 1979-10-01

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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