Effects of Date of Transplanting on the Incidence of Rice Leaf Folder Cnaphalocrocis medinalis (Guenée) and its Population Dynamics Kumar Anil1,*, Deep Gagan, Nath Ravinder2, Sran Amanpreet Singh3 1Department of Entomology, School of Agriculture, Lovely Professional University, Phagwara144 411, Punjab, India 2Shoolini University of Biotechnology and Management Sciences, Bajhol, Solan173229, Himachal Pradesh, India 3Guru Kashi University, Talwandi Sabo151302, Bathinda, Punjab, India *Email: anilkumar11304597@gmail.com (corresponding author)
Online Published on 04 January, 2024. Abstract Field studies were conducted to evaluate the impact of transplanting dates and weather parameters on the incidence of rice leaf folder Cnaphalocrocis medinalis (Guenee). During 2018 kharif season, the first incidence was noticed during 27th standard meteorological week (SMW) irrespective of the transplanting dates, with peak being in the 28th SMW (1.67% damaged leaves/ hill). Least damage was observed in 4th date of transplanting (20th July), while maximum incidence was with 20th June transplanting. The correlation of incidence with temperature showed negative correlation, while rainfall and relative humidity showed positive relationship. Top Keywords Cnaphalocrocis medinalis, Population dynamics, Rainfall, Relative humidity, Temperature, Correlation coefficients, Transplanting dates, Seasonal incidecne. Top |