Untersuchungen über Biologie und Ökologie von Calandra granaria L. und Sitophilus oryzae L. (Coleoptera: Curculionidae).

Abstract

As a contribution to the biology and ecology of the Gurculionid beetles Calandra granaria L. and Sitophilus oryzae L. there are presented results of the author's experiments on methodological problems and the influence on population development caused by the age of the beetles, sex ratio, and high population density.