Effects of Temperature and Presence of Males on Laboratory Oviposition by the Alfalfa 1,2

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During a period of controlled, highly fluctuating daily Temperatures., oviposition of the eastern strain of Hypera postica (Gyllenhal) changed rapidly in response to the temperature. The number of ovipositing females, the total number of eggs deposited, and the average number of eggs per ovipositing female per 24-hour period all increased significantly as the temperature was increased from 5° to 35°C. The presence of a male with a female in a petri dish significantly reduced the female's reproductive rate at 24±1.5°C. The average number of eggs per female, the total number of eggs per group of females, and the percentage of females ovipositing were greater in isolated, multiple-mated females than in individual females confined with a male.

Document Type: Research Article

Publication date: June 1, 1970

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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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