Rice (Oryza sativa L.), an important cereal crop in the world, provides a staple food for nearly half of the global population and like other crops rice also harbours numbers of insect pests amongst which yellow stem borer is major one. On the other hand, various technologies as well as extension tools are available to manage this pest effectively. However, the present study was undertaken with an objective to assess the impact of FLDs specifically single component demonstrations through an eco-friendly option i.e. application of Cartap hydrochloride 4G @ 18750 g/ ha to manage the pest in summer rice. The study was carried out by Howrah Krishi Vigyan Kendra during rabi-summer season from 2009-10 to 2012-13 for consecutive four years at randomly selected farmers fields of 4 adopted villages. In demonstration plots dead heart incidence was 2.6%, while in farmers ’ plots incidence was 19.0%. The white ear head incidence recorded was 3.8% in demonstration plots while in farmers ’ plots it was 28.0%. The average percentage increased in the yield over farmers ’ practices was 22.75%. The technology gap, extension gap and technology index calculated were 775 kg/ ha, 1125 kg/ ha and 11.23, respectively. Economic analysis says that net return as well as benefit cost ratio was higher under demonstrated technology as compared to farmers ’ plots

Keyword: FLD, Impact, Rice, Yellow Stem Borer, Management