Pupal Size and Mortality, Longevity, and Reproduction of Cabbage Loopers Reared at Several Densities
Authors: HENNEBERRY, T. J.; KISHABA, A. N.
Source: Journal of Economic Entomology, Volume 59, Number 6, December 1966 , pp. 1490-1493(4)
Publisher: Entomological Society of America
Abstract:The number of pupae of the cabbage looper, Trichoplusia ni (Hübner), harvested per 0.18- or 0.24-liter (6- or 8-oz) rearing container decreased with the increasing number of larvae reared per container. Pupal weights of both sexes were significantly reduced at high larval densities; but mating, moth mortality, oviposition, and egg viability of adults from larvae reared at high densities were not affected. Providing more surface area within the rearing container had no effect on number of larvae that pupated. When 2, 4, 6, or 8 larvae were reared in 0.030-liter (1-oz) containers supplied with 10 or 15 ml of medium, results were similar. High adult density in cages resulted in reduced oviposition and increased mortality.
Document Type: Research Article
Publication date: December 1, 1966
- 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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