Translator Disclaimer
1 December 2008 Modeling Embryo Development of Sitona discoideus Gyllenhal (Coleoptera: Curculionidae) Under Constant Temperature
Author Affiliations +
Abstract

The alfalfa root weevil, Sitona discoideus (Coleoptera: Curculionidae), is an important pest of alfalfa. The developmental rates of the embryo development were recorded at eight constant temperatures ranging from 8.5 to 30°C. Using 10 models (1 linear and 9 nonlinear), we evaluated the relationship between constant temperature and developmental rate. Embryo development was shortest (8.5 d) and longest (69 d), at 28 and 8.5°C, respectively. The threshold temperature (T0) and the thermal constant (K) were estimated using linear regression to be 4.7°C and 207.7 DD, respectively. The two most efficient nonlinear models, the Lactin and the Sharp and DeMichele, gave estimates of Tmin and Tmax of 4.4 and 3.9 and 30.0 and 30.9°C, respectively. This information has potential application in predicting the suitability and optimal time of release of an egg parasitoid of S. discoideus.

Abbas Arbab, Dimitris C. Kontodimas, and Mark R. McNeill "Modeling Embryo Development of Sitona discoideus Gyllenhal (Coleoptera: Curculionidae) Under Constant Temperature," Environmental Entomology 37(6), 1381-1388, (1 December 2008). https://doi.org/10.1603/0046-225X-37.6.1381
Received: 26 September 2007; Accepted: 1 June 2008; Published: 1 December 2008
JOURNAL ARTICLE
8 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