אסיף מאגר המחקר החקלאי

A comparative study of the effects of constant temperatures on development time and survival of two coccinellid beetles of the genus Chilocorus

Year:

1983

Source of publication :

Authors :

Volume :

11

Co-Authors:

Podoler, H.
Henen, J., Dept. of Entomology, Hebrew University of Jerusalem, Faculty of Agriculture, Rehovot, Israel

Facilitators :

Link :

Abstract:

The effect of constant temperatures on duration and rate of development and on survival of two species of predatory beetles of the genus Chilocorus (Coleoptera: Coccinellidae) (one endemic and one imported) was studied. The observed data were analyzed and compared applying three different methods. The methods based on the logistic curve provided a better fit to the observed data as compared with the widely used Blünck-Bodenheimer equation. The imported species C. kuwanae had a faster rate of development than the endemic species C. bipustulatus at the lower temperatures tested (18°, 22°C), but it could not complete its development at 32°C. Survival of C. kuwanae was considerably lower than that of the endemic species. As both species are active during the summer, it was concluded that the sensitivity of C. kuwanae to high temperatures provides at least a partial explanation to the fact that this species has not become established yet in Israel. © 1983, Springer Science + Business Media B.V.. All rights reserved.

Note:

Related Files :

Related Content

More details

You may also be interested in