author(s)
Seema Tripathy and Ladu Kishore Rath

abstract
Influence of zinc in form of its sulphatic and EDTA formulations, applied as basal or foliar spray alone or in various combinations, against the white backed plant hopper (WBPH), Sogatella furcifera (Horvath), a major insect pest on rice, was studied under caged condition during Kharif, 2017 in the Department of Entomology, College of Agriculture, Odisha University of Agriculture and Technology, Bhubaneswar. It was observed that, basal application of Zn EDTA @ 40 kg/ha along with its foliar spray @ 0.8%, twice at 30 and 45 days after transplanting affected the nymphal and adult alightment as well as decreased the total number of eggs laid by the female and percent hatching of eggs. Zinc exercised a possible induced non-preference mechanism of resistance in rice to WBPH.