Der 24-Stunden-Aktivitätsrhythmus der Imago des Apfelwicklers (Carpocapsa pomonella L.)

Abstract

By the investigations carried out in 1969 it was established that day activity of imago form of Carpocapsa pomonella L. begins on an average at 1 p.m. and ends at 8 a.m. the next day. The rest of the time butterflies are sitting motionless. The peak of the activity is in the middle of the activity period and lasts 15 - 30 minutes. At this time the active butterflies make up 45.60 - 58.34 % of the whole number of those counted.