Cyclicity and some characteristics of mass reproduction ofCalliptamus italicus L. in Southern Russia

Analysis of the reproductive dynamics ofCalliptamus italicus during the past 100 years confirmed the dependence of locust invasions on the 11-year cycles of solar activity, which was previously known for other gregarious locusts. Over a considerable part of the species range, the onset of mass reproduction is promoted by a hot and droughty spring and summer… (More)