The sugarcane borer, Diatraea saccharalis (F.), reduced sweet sorghum sugar yield up to 46% in artificial infestation field trials. A significant relationship between D. saccharalis damage and yield loss indicated an economic injury level of 10% bored internodes. Stalk weight, percent sucrose, and total sugars were negatively correlated to D. saccharalis damage. Increased fiber content, resulting in less juice, was positively correlated to percent bored internodes. Information from damage levels, along with survival records, indicated that the economic threshold was reached when 5% of the sweet sorghum plants contained small D. saccharalis larvae in their leafsheaths.
Document Type: Research Article
Publication date: February 1, 1988
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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.