Evaluation of Yellow Sticky Trap Against Mustard Aphid (Lipaphis erysimi Kalt.) on Farmer’s Field

Performance of yellow sticky trap (25 traps/ha) was assessed on farmer’s field through frontline demonstrations. The percent increase in the yield under demonstration technology was 26.99 and 24.64 per cent over the farmer’s practices during the year 2019-20 and 2020-21, respectively. Under the demonstrated technology, farmers were got maximum net return of Rs. 62806/ha and Rs.53712/ha in both the years, respectively as compared to farmers practice which registered net return of Rs. 45680/ha and Rs. 39520/ha. Reduction in the yield and net profit during 2020-21 is because of removal of the Imidacloprid 17.8SL @ 150 ml/ha in demonstration technology. Imidacloprid 17.8SL could not be included in study due to its adverse effect on honeybee pollination. The cost benefit ratio was also higher 3.17 and 2.88 under demonstration technology as compared to farmers practices 2.72 and 2.48 in the year 2019-20 and 2020-21, respectively.