Insect Predators for Controlling Aphids1 on Potatoes. 8. Green Peach Aphid Consumption by Coccinella septempunctata and C. transversoguttata2
Authors: SHANDS, W. A.; SIMPSON, GEDDES W.
Source: Journal of Economic Entomology, Volume 65, Number 5, October 1972 , pp. 1388-1392(5)
Publisher: Entomological Society of America
Abstract:When offered increasing numbers daily, pairs of adults of Coccinella septempunctata L. containing nondiapausing females consumed the largest percentage of green peach aphids, Myzus persicae (Sulzer), when the number offered was 170 or 200, as compared with 154 or 174 for those containing diapausing females, As the number of aphids per beetle introduced daily was increased from 58 to 115, the estimated daily consumption of nondiapausing females increased from 56 to 99, whereas that of diapausing females increased from 50 to 87, Daily aphid consumption by nondiapausing females was greater when they were fed aphids only or aphids daily along with a liquid food supplement every 4th day than when fed aphids daily plus the liquid supplement every 2nd day, Under similar conditions, daily aphid consumption by diapausing females was increased by including the liquid food supplement in the diet, whether offered every 4th or every 2nd day.
The larvae of C, septempunctata consumed from 619 to 750 green peach aphids (of all sizes), on average, between hatching and pupation, depending on time of year. The comparable range in numbers for C, transversoguttata Faldermann was 699 to 756, Differences between coecinellid lid species in numbers of aphids caten per larva were not significant (P=O.05).
Document Type: Research Article
Publication date: October 1972
- 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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