Department of Entomology, Birsa Agricultural University, Kanke, Ranchi-834006 Email: rabindraento@yahoo.co.in
Online published on 3 December, 2011.
The field experiments conducted for two consecutive years revealed negative association between infestation (BFI%) caused by budfly (Dasyneura lini Barnes) and seed yield of linseed. It was also observed that 3 to 5 rounds of foliar spraying of imidacloprid (0.003%) proved to be economically superior to 6 sprayings. Higher net monetary returns (Rs. 7220 ha −1) with the highest benefit ratio of 3.44 was achieved when the crop received 5 sprays with imidacloprid (0.003%) with additional gain in seed yield of 4.66 q ha–1 over the unprotected crop.
Linseed, budfly, economic viability, insecticides, sprays
