Population dynamics of mustard aphid Lipaphis erysimi Kumar Ashwani*, Kumar Sachin Department of Entomology, Allahabad School of Agriculture SHIATS, Allahabad, 211007 *Email: drashwanikumar95@gmail.com
Online published on 13 March, 2018. Abstract Mustard aphid (Lipaphis erysimi Kalt.) is one of the major pests of rapeseed-mustard, and a study was carried out on its population dynamics on mustard in relation to temperature, relative humidity, rainfall, and sunshine hours during 2012–2013, 2013–2014, and 2014–2015. The incidence of aphids started from 51st standard week, and disappeared after 11th standard week with the peak population being observed during 7th to 9th standard week. The population dynamics with correlation studies did not reveal any consistent relationship with the weather factors. Top Keywords Mustard aphid, population dynamics, temperature, relative humidity, rainfall, sunshine hours, correlation coefficients, regression analysis. Top |