This study investigated the insecticidal bioefficacy of seven compounds (1-7) against maize aphid (Rhopalosiphum maidis). Results indicated that LC₅₀ values ranged from 1.52 to 18.45 mg/L for nymphs and 23.96 to 80.73 mg/L for adults. Compound (6) demonstrated the highest potency, with LC₅₀ values of 1.52 mg/L against nymphs and 23.96 mg/L against adults, establishing it as the most effective analogue for potential aphid control. The other compounds also exhibited varying degrees of insecticidal activity. For nymphs, compound (5) was notably effective, followed by compound (7), and compound (3) with LC₅₀ values of 2.23, 2.37, and 2.45 mg/L, respectively, indicating their promising potential. Compounds (4), (2), and (1) showed comparatively lower efficacy against nymphs with LC₅₀ values of 12.19, 14.14, and 18.45 mg/L, respectively. Similarly, for adults of maize aphids, compounds (5), (7), and (3 …