Effect of weather parameters on seasonal incidence of root borer, Emmalocera depressella (Swinhoe) in sugarcane under terai zone of Northern West Bengal

Abstract

Study the effect of weather parameters on seasonal incidence of borer complex in sugarcane under Terai zone of Northern West Bengal was conducted during two consecutive years 2017-18 and 2018-19. During seasonal study, It was observed that maximum temperature with maximum relative humidity showed highly significant and significant positive correlation(r=8733** and r=6784*) with % incidence of root borer of sugarcane, respectively and the other parameter i.e. minimum temperature, minimum RH showed non significant positive correlation (r = 0.0758, r = 0.1619), respectively, while, the rainfall registered non significant negative relation (r= -0.1331). This is clear that maximum temperature was the influential weather elements for buildup of root borer incidence of sugarcane.