Method for Determining Age Structure of Adult Populations of the Lesser Cornstalk Borer (Lepidoptera: Pyralidae)
Authors: Funderburk, J. E; Herzog, D. C; Lyncw, R. E
Source: Journal of Economic Entomology, Volume 77, Number 2, April 1984 , pp. 541-544(4)
Publisher: Entomological Society of America
Abstract:Laboratory experiments were conducted to develop methods for determining age structure of Elasmopalpus lignosellus (Zeller) adults. Oöcyte development in the ovaries was used to establish five female classes:(1) no mature oocytes; (2) ca. 25%of oöcytes mature; (3) ca. 50% of oöcytes mature; (4) >75% of oöcytes mature, >30 mature oöcytes; and (5) >75% of oöcytes mature, <30 mature oöcytes. At 26.7°C, 96.6% of the adult females in age classes 1, 2, 3, 4, and 5 were within the age intervals of ca. 0 to 2, 2 to 4, 4 to 6, 6 to 8, and 8 to 10 days of adult age, respectively. Fat body depletion in the abdomen was used to construct three male age classes: (1) much fat body material, ca. 0 to 25% depleted; (2) moderate fat body material, ca. 50% depleted; and (3) little fat body material, >75% depleted. At 26.7°C, 90.9% of the adult males in age classes 1, 2, and 3 were within the age intervals of ca. 0 to 4, 6 to 8, and 8 to 10 days of adult age, respectively. These physiologically based, female and male classification systems appear suitable for determining chronological age structure of feral populations.
Document Type: Research Article
Publication date: April 1984
- 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