Oviposition and Egg Dispersion of the Apple Aphid with Observations on Related Mortality Factors1
Authors: WESTIGARD, P. H.; MADSEN, H. F.
Source: Journal of Economic Entomology, Volume 57, Number 4, August 1964 , pp. 597-600(4)
Publisher: Entomological Society of America
Abstract:The apple aphid, Aphis pomi De Geer, begins oviposition in early October. Termination of egg laying is usually brought about by weather extremes. Discussed are the environmental factors which determine egg densities indirectly by reducing the number of oviparous forms prior to oviposition and directly by reduction in the number of eggs after they are laid. The typical dispersion of eggs on infested shoots is described: egg densities found in decreasing numbers from the shoot tips.
Document Type: Research Article
Publication date: August 1964
- 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.
- Editorial Board
- Submit a Paper
- Subscribe to this Title
- Information for Advertisers
- Visit this journal's homepage
- ingentaconnect is not responsible for the content or availability of external websites