Sampling for the Egyptian Alfalfa Weevil:1 A Comment on the Sweep-Net Method2
Authors: COTHRAN, WARREN R.; SUMMERS, CHARLES G.
Source: Journal of Economic Entomology, Volume 65, Number 3, June 1972 , pp. 689-691(3)
Publisher: Entomological Society of America
Abstract:The square-foot and sweep-net sampling methods are compared in analysis of larval population trends of Hypera brunneipennis (Boheman). The efficiency of the sweep-net method in terms of the number of sweeps required to estimate accurately the actual larval population was found to vary greatly with the age-class structure of the study population, Inferences arc drawn relative to the use of both techniques to provide similar information for the closely-related alfalfa weevil H. poslica (Gyllenhal). The sweep net is criticized relative to its current use as the primary sampling tool upon which chemical control recommendations for these species arc based in California.
Document Type: Research Article
Publication date: June 1, 1972
- 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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