Differential Effects of Temperature on the Biological Activity of Four Biotypes of the Pea Aphid1


Source: Journal of Economic Entomology, Volume 64, Number 1, February 1971 , pp. 153-155(3)

Publisher: Entomological Society of America

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Four populations of Acyrthosiphon pisum (Harris) from 4 geographical areas in the western United States—Bakersfield, Calif, Mesa, Ariz.: Corvallis, Oreg.; and Reno, Nev.,—were segregated on the basis of biological response to 4 different temperatures. Effect of temperature on all biological activities of each aphid biotype and differences in the mean development of the 1st-nymphal stadium and combined nymphal stadia were highly significant among biotypes. Fecundity among all biotypes was different at the 0.01 level of probability. A highly significant biotype by temperature interaction was found for development of the 1st instar stage and the preparturition period. Populations from Bakersfield and Mesa had similar but a significantly reduced development of the 1st instar stage than populations from Reno and Corvallis. However, populations from Reno and Mesa bad a similar but a significantly higher fecundity than populations from Bakersfield and Corvallis.

Document Type: Research Article

Publication date: February 1, 1971

More about this publication?
  • 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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