To study the seasonal activities of major insect pest species of paddy collected in light traps

Abstract

Seasonal changes in the activity of pest species in adult stage monitored by light trap catches (weekly total) operated by MV as well as UV light source have been shown in population graphs of both the light sources. These graphs show the comparative changes in populations with major peaks throughout the active season during the period July to October end. This study examined the Seasonal activity of six species viz. Nephotettix virescens, Leptocorisa acuta, Cnaphalocrocis medinalis,Mythimina separate Parapoynx stagnalis, Melanitis leda ismene were observed in trap catches operated in paddy field regularly in considerable numbers were studied in kharif season during the period July to October end (2017). Two to three peaks were observed in general, showing period of highest & lowest activity both.