Economic Damage levels of Bean leaf Roller Populations on Snap Beans1,2
Author: GREENE, G. L.
Source: Journal of Economic Entomology, Volume 64, Number 3, June 1971 , pp. 673-674(2)
Publisher: Entomological Society of America
Abstract:Urbanus Proteus (L.) populations seldom cause yield reductions of snap beans in Florida. Yield reduction occurred after 725 cm2 of leaf area per plant was removed. The first 3 larval stages do not reduce bean yields based on leaf area eaten and feeding habits. The 4th-stage larvae ate 27.7 cm2 leaf area, and over 26 larvae per plant would reduce yields. The 5th-stage larvae ate ]62.4 cm2 leaf area, and 4.4 larvae per plant would result in yield reductions. Based on 50% survival of individuals from one life stage to the next, an estimated 140.8 eggs per plant must be present to reduce yields of Florida snap beans.
Document Type: Research Article
Publication date: June 1, 1971
- 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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