Studies on the “Efficacy of insecticides against Blister beetle (Mylabris pustulata) in Pigeonpea at Nagaland” were conducted during the year 2017-18, at the Experimental farm Entomology, SASRD, Nagaland University, Medziphema, Nagaland. The field experiment was laid out in Randomized Block Design (RBD) with 3 replications. Plot size was maintained at 4.05 m × 2.4 m with inter spacing of 1 m in between plots. Row to Row and plant to plant spacing was maintained at 45cm×30cm. 7 treatments (6 insecticides and 1 untreated control) were used for the study on genotype UPAS--120. Results of the insecticidal treatments were found to be significant. After the 1st and 2nd spray, the highest percent reduction of Blister beetle was recorded on Lambda-cyhalothrin 5 EC treated plot of 83.16% followed by Flubendiamide 480 SC (76.04%) and Indoxacarb 15.8 EC treated plot (72.33%). The lowest percent reduction of Blister beetle after both the sprays was recorded on NSKE 5% treated plot of 47.63%. Overall, all the Insecticidal treatments showed superiority over untreated control in reducing the beetle population.
