Susceptibility of Life Stages of Sitophilus oryza to Various Fumigants1

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Results are given of the susceptibility of the egg, larval, pupal, and adult stages of the rice weevil, Sitophilus oryza (L.), in infested wheat fumigated with acrylonitrile, carbon bisulfide, chloropicrin, ethylene dibromide, ethylene dichloride, and methyl bromide.

If the egg stage is omitted, the order of decreasing susceptibility to all fumigants except ethylene dichloride is larva, adult and pupa. In comparison with the other stages, the eggs are resistant to carbon bisulfide and relatively resistant to methyl bromide.

Document Type: Research Article

Publication date: April 1, 1958

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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.
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