Influence of the different light sources in egg laying behavior of Helicoverpa armigera (Hubner) (Lepidoptera: Nuctuidae) of moths in ascending and descending phase of lunar cycle

Abstract

Helicoverpa armigera is a major pest of chickpea. Ovipositional behavior of moth is govern by the biological clock of the moth regulated the ovipositional rhythm in subsequential lunar cycle. Presence or absence of artificial light influenced the intensity of egg laying to the same extent but not the pattern of egg laying in different quarters of the lunar cycle. Egg laying behavior of H. armigera in chickpea studies in 5 lunar cycles. Data revealed that ascending phase 39% in white transparent cage 33% and 28% in dark cage. In descending phase 35% white artificial cage, 34 % dark cage and 31% white transparent cage.