*Department of Plant Breeding and Genetics, Punjab Agricultural University, Ludhiana
Department of Agricultural Meteorology, Punjab Agricultural University, Ludhiana
Online published on 7 December, 2011.
The experiment was carried out to study the effect of different weather parameters on incidence of whitefly population. Two varieties of moong viz. SML-668 and KM-22 were sown on two different dates of sowing i.e. 20th July and 6th August during kharif seasons of 2007 and 2008. Whitefly (Bemisia tabaci) population was recorded twice a week. Whitefly population was positively correlated with maximum temperature whereas morning relative humidity showed an inverse relationship with it. Stepwise multiple regression analysis showed higher R2 values when maximum weather parameters were involved. Weather of the previous week significantly affect the incidence of peak whitefly population.
Bemisia tabaci, Correlation, Date of sowing, Weather parameters
