Agrochemicals play the principal critical role in managing the black cutworm, Agrotis ipsilon (Hufn.). The study was taken to demonstrate the biological performance of certain pesticides at their LC₅₀ values on the biological aspects against 4^th instar larvae of the black cutworm under laboratory conditions. The data revealed that profenofos was the most toxic compound, followed by α-cypermethrin and indoxacarb in corresponding to LC₅₀ values of 2.15, 2.59, and 3.03 ppm, respectively. The percent survived larvae treated with LC₅₀ values of the tested insecticides after 15 days of the experiment ranged from 6.67% to 48.33% for both indoxacarb and oxamyl treatments, respectively, versus to 96.67% in the control treatment. On the other hand, the highest average number of resulted pupae (4.17) was detected in the profenofos treatment, followed by (4.0) at the oxamyl treatment, versus the lowest observed average number (0.50 and 1.17) in both the performed treatments of indoxacarb and lufenuron, respectively. It could be concluded that the lowest number of malformed adults (1.0) was observed for both the evaluated insecticides of oxamyl, indoxacarb, spinetoram, and thiamethoxam compared to the complete absence of malformed emerging adults at all the other tested insecticides. While the treatment of lufenuron gave the highest number of deformed adults (5.0). Furthermore, high-gained number of deposited eggs/untreated female (733.80), followed by the gradually decreased numbers of 667.60, 617.00, and 559.40 eggs in case of the evaluated LC₅₀ values of cypermethrin, oxamyl, and profenofos respectively. The lowest number of deposited eggs (278.60 and 402.00 eggs/female) was recorded for both spinetoram and thiamethoxam treatments.