If you are experiencing problems downloading PDF or HTML fulltext, our helpdesk recommend clearing your browser cache and trying again. If you need help in clearing your cache, please click here . Still need help? Email help@ingentaconnect.com

Effect of Fluctuating Temperatures on Development of Immature Russian Wheat Aphid (Homoptera: Aphididae) and Demographic Statistics

$28.00 plus tax (Refund Policy)

Buy Article:


The effect of temperature on developmental rates and demographic statistics of apterous and alate Russian wheat aphids (RWA), Diuraphis noxia (Mordvilko),was studied in the laboratory using three fluctuating temperature regimes that were similar to average and extreme low and high temperature conditions of late spring in eastern South Dakota. An estimate of the lower threshold for development of immatures was determined (4.1°C). Degree-day (DD) requirements from birth to the onset of reproduction were determined for apterae (139 DD) and alatae (158 DD). Gross and net reproductive rates of both morphs were greatest at the low temperature regime and declined with increasing temperature. When expressed on a time scale of days, intrinsic rates of increase of both morphs were highest and mean generation time shortest at the high temperature regime. On a time scale of DDs, mean generation times converged but intrinsic rates of increase did not; intrinsic rates of increase of both morphs were highest for the low temperature regime and decreased with increasing temperature. For each temperature regime, the intrinsic rate of increase of apterae exceeded that of alatae.

Document Type: Research Article

Publication date: February 1, 1989

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.
  • Editorial Board
  • Submit a Paper
  • Subscribe to this Title
  • Information for Advertisers
  • Visit this journal's homepage
  • ingentaconnect is not responsible for the content or availability of external websites
Related content



Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more