The impact of larval feeding by Vitacea polistiformis (Harris) on commercial grape vines in north central Georgia is described by a set of multiple regression equations where the response variables are grape vine yield parameters and the concomitant variables are 2 indices of grape root borer (GRB) infestation level. Correlations between total (cane + berry) yield and 2 GRB infestation level parameters indicate that 21% increase in trunk base girdling by larval feeding is associated with a 90% reduction in total (berry + cane) yield, and the accumulation of 42 or more larval feeding sites in the root system can cause death of grape vines
Document Type: Research Article
Publication date: April 1, 1979
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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.