The construction of artificial beds for the propagation of the alkali bee (Nomia melanderi Ckll.) was achieved by duplicating the texture, moisture, and alkalinity of the native soils in which the bee was found. Pits, up to 60 by 60 feet in outside dimension, were excavated 3 feet deep and lined with polyethylene. Two to four inches of gravel were added to the polyethylene and the pits backfilled with soil consisting of less than 7% clay-size particles. Salt was rotovated into the upper level of the bed to effect soil dispersion and reduced water loss. Tubes were led through the soil to the gravel layer as a method of introducing the necessary moisture, and transplants were made into the bed to serve as the nucleus of the new colony. Burrowing populations in excess of 250 per square foot were recorded from a 2-year-old bed, which represents an 8-fold increase in population density over the best natural site in Oregon.
Document Type: Research Article
Publication date: December 1, 1960
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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.