Granary weevils, Sitophilus granaries (L.), were collected from laboratory colonies and field infestations in 1966. Adult, pupal, and larval stages of the weevil were surface disinfected, macerated, and cultured at 37°C on blood agar, dextrose-starch agar, and nutrient agar plus wheat infusion. Larvae, pupae, and pre-emergence adults were bacteriologically sterile. Bacteria isolated from emerged adult weevils included Escherichia intermedia (Werkman and Gillen 1932), Proteus rettgeri (Hadley, Elkins, and Caldwell 1918), P. vulgaris Hauser 1885, Bacillus subtilis Cohn 1872, Serratia marcescens Bizio 1823, Streptococcus spp., Micrococcus spp., and members of the Klebsiella-Aerobacter group. The weevil is a potential source of bacteria for the contamination of grain and cereal products. Some of these bacteria are pathogenic to man.
Document Type: Research Article
Publication date: December 16, 1968
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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.