Effects of Insect Infestation of Farm-Stored Wheat on Its Sale Price at Country and Terminal Elevators
Authors: REED, CARL; WRIGHT, VALERIE F.; PEDERSEN, JOHN R.; ANDERSON, KELLI
Source: Journal of Economic Entomology, Volume 82, Number 4, August 1989 , pp. 1254-1261(8)
Publisher: Entomological Society of America
Abstract:The relationship between sample characteristics and the likelihood of a price discount was examined for samples of farm-stored wheat taken as it was delivered for sale to elevators in Kansas during 1986 and 1987. Lower test weight, as well as increased grain moisture and dockage content, increased the likelihood of a price reduction. The presence of insects, however, was significantly associated with the probability of receiving a discount only at terminal elevators. Although the likelihood and value of price discounts were more predictable at terminal than at country elevators, only about 20% of the overall variability in discounts was explained by sample characteristics. The cost of price discounts risked because of the presence of live insects at the time of delivery to elevators was 73.5/metric ton (t) (2.0¢/bu) if 0.1 to 1.0 insects per 1,000 g were present in the sample, 77.2¢/t (2.1¢/ bu) if the insect density was 1.1 to 5.0 insects per 1,000 g, and $1.51/t (4.1¢/bu) if more than 5.0 live insects per 1,000 g were present. Overall, for 17,730 t (650,000 bu) sold, 24.6¢t (0.67¢/bu) was lost because of insect discounts in some lots.
Document Type: Research Article
Publication date: August 1, 1989
- 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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