Various stages of Paramyelois transitella (Walker) were exposed to a modified atmosphere (O2< 1%, CO2 9–9.5%, balance principally N2) produced by an exothermic inert atmosphere generator. Exposure times required for 50 or 95% mortality showed that mature larvae, pupae, and 0-, to 1-day-old eggs were more tolerant while young larvae, adults, and eggs ready to hatch were more susceptible. The generated atmosphere was more toxic at 27° than at 18°C. Pupae, 30 days from the oviposition period, were the most tolerant stage with LT95 values of 38.3 h at 27°C and 145 h at 18°C. Sublethal exposures of adult navel orangeworms to the generated atmosphere significantly reduced the number of progeny produced by surviving adults.
Document Type: Research Article
Publication date: February 1, 1977
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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.