Translator Disclaimer
1 May 2001 Effect of Temperature on Development and Demographic Parameters of Tetranychus urticae and Eotetranychus carpini borealis (Acari: Tetranychidae)
Author Affiliations +
Abstract

Effect of temperature on developmental duration and demographic parameters of Tetranychus urticae Koch and Eotetranychus carpini borealis (Ewing) were investigated at five constant temperatures. Immature development for T. urticae was shorter than that of E. carpini borealis. A major difference in developmental time and fecundity rates between the two species was observed at 30°C, where T. urticae had the shortest developmental time and highest daily fecundity compared with E. carpini borealis. Developmental times for the two spider mite species fell within the range of developmental times reported for other spider mites. Life tables were constructed for both species. The intrinsic rate of increase for T. urticae ranged from 0.08 at 15°C to 0.321 at 30°C, whereas that for E. carpini borealis ranged from 0.065 at 15°C to 0.151 at 30°C. Temperature-development data were fitted to a nonlinear model. This model allowed the detection of some basic differences between the two spider mite species. In addition, simple linear regression was used to estimate lower developmental thresholds and degree-day requirements for development. Those data were in agreement with field observations.

M. Bounfour and L. K. Tanigoshi "Effect of Temperature on Development and Demographic Parameters of Tetranychus urticae and Eotetranychus carpini borealis (Acari: Tetranychidae)," Annals of the Entomological Society of America 94(3), 400-404, (1 May 2001). https://doi.org/10.1603/0013-8746(2001)094[0400:EOTODA]2.0.CO;2
Received: 25 May 2000; Accepted: 1 January 2001; Published: 1 May 2001
JOURNAL ARTICLE
5 PAGES

This article is only available to subscribers.
It is not available for individual sale.
+ SAVE TO MY LIBRARY

SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top