EFFECT OF WEATHER PARAMETERS ON ABUNDANCE OF GREEN LEAFHOPPER, NEPHOTETTIX VIRESCENS (DISTANT) IN RICE ECOSYSTEM OF VARANASI REGION

摘要

The present research was conducted on submergence rice variety Swarna sub-1 to study the seasonal profusionof green leafhopper, Nephotettix virescens (Distant) in rice ecosystem of Varanasi region (India) during Kharif season of 2016and 2017 at Agriculture Research Farm of Institute of Agricultural Sciences, Banaras Hindu University, Varanasi (India). Thepopulation of green leafhopper was first observed during the 2 nd week of August and its activity started increasing significantlyfrom the 3 rd week of August. The pest attained a crowning level during 5 th week of September 2016. In Kharif 2017, it was firstobserved during the 1 st week of August and a peak level during the 3 rd week of October. In correlation studies, a significantpositive correlation was observed with maximum, minimum and average temperature and significant negative correlation withrainfall and morning relative humidity whereas other parameters showed a non-significant positive correlation with a populationof GLH during Kharif season of 2016 and 2017.