Population dynamics of major insect pests of rice and the impact of climatic factors on their population Srinivas K1, Raghuraman M*, Komal J2, Kumar E Uday3 1Division of Entomology, Indian Council of Agriculture Research-Indian Agricultural Research Institute, New Delhi, 110012, India 2Department of Entomology & Agricultural Zoology, Banaras Hindu University, Uttar Pradesh, 221005, India 3Navsari Agricultural University, Gujarat, 396450, India *Corresponding author E-mail: srinugdml@gmail.com
Online published on 27 December, 2023. Abstract The study on effect of different climatic factors on the abundance of major insect pest complex of rice, conducted under field conditions at BHU, revealed that the incidence of stem borer dead hearts (0.85%) was first noticed during the 32nd standard week (SMW) and culminated with a maximum of 9.37 per cent during the 48th SMW. The population of leaf folder was noticed during the 31st SMW with two peaks of 11.55 and 11.92 per cent of leaf damage during the 36th and 39th SMW, respectively. Incidence of ear head bugs noticed during the 31st SMW reached at its peak during the 36th SMW. Data showed a positive correlation with minimum temperature, rainfall and wind speed and a negative correlation with minimum relative humidity. In the current scenario of climate change, it is investable to know the population dynamics of a pest species to manage them in an economically effective manner. Top Keywords Climatic factors, Ear head bug, Leaf folder, Population dynamics, Stem borer. Top |