Effect of abiotic factors on the incidence of Scirpophaga incertulas using sex pheromone lure in Punjab Longkumer I. Yimjenjang*, Sudharsanan K. Nithiya, Ningthoujam Gayatri1, Tamilarasan, Bhutia Tenzing1 Department of Entomology, School of Agriculture, Lovely Professional University, Phagwara - 144 011, Punjab, India 1Department of Plant Pathology, School of Agriculture, Lovely Professional University, Phagawra - 144 011, Punjab, India *Corresponding authors' E-mail : yimjenjang.28315@lpu.co.in
Online published on 20 December, 2024. Abstract A study was conducted during the rice growing season, 2022 and 2023 kharif to develop a model for the adult moth population by installing a pheromone lure for monitoring of adult moth activity which will enable to employ suitable technique. The result found significant correlations between abiotic factors and adult moth. It is revealed that the mean yellow stem borer population during 2022 and 2023 was positively correlated with mean maximum and minimum temperature and negatively correlated with morning and evening relative humidity. The coefficient of determination recorded during both the years were R2 = 0.804 and R2 = 0.812 which showed a high influence of abiotic factors on the population of moth. Pheromone traps for surveillance is crucial for integrated pest management. Peak yellow stem borer populations were observed in during October-November with highest mean per cent population of 84.33 and 88.09 recorded at 44th SMW during both the year. This research provides insights for timely interventions to reduce yield losses caused by Scirpophaga incertulas in rice crops. Top Keywords Abiotic factors, Scirpophaga incertulas, Seasonal incidence, Sex pheromone lure. Top |