Fecundity Comparisons of the Russian Wheat Aphid (Homoptera: Aphididae) in Bethlehem, South Africa, and in Stillwater, Oklahoma

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Fecundities of Russian wheat aphids, Diuraphis noxia (Mordvilko), from populations collected at Stillwater, OK, and Bethlehem, South Africa, were measured in the laboratory at each location. The measurements were conducted under two temperature regimes identical for each location. We detected no statistically significant differences in total fecundity between the populations for the Bethlehem tests conducted at 15 and 25°C and the Stillwater test at 15°C. However, fecundity of aphids in the Stillwater 25°C test was significantly lower than that of the other tests. In addition, reproduction at the higher temperature peaked sooner for the Stillwater aphids than for the Bethlehem aphids.

Document Type: Research Article

Publication date: April 1, 1993

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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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