Pesticides are broadly used in the control of Tetranychus urticae Koch populations. In the present study, the toxicity and residual activities of abamectin, spirodiclofen, and pyridaben against T. urticae on cucumber plants were assessed under laboratory and greenhouse conditions. Furthermore, the influences of tested pesticides on some biological aspects of this pest were studied. In laboratory experiments, LC₅₀ values of abamectin, spirodiclofen, and pyridaben to females were 0.71, 41.04, and 28.56 ppm, respectively. Treated females presented low fecundities ranging from 0.18 to 3.81 eggs/female/day versus 8.4 eggs/female/day in control. Spirodiclofen and pyridaben were found to be have much stronger ovicidal activity as compared to abamectin. Abamectin and spirodiclofen had an elongation effect on the developmental durations of immatures with a mean pre-adult of 14.60 and 10.04 days, respectively, compared to 8.75 days in the control. The highest reduction effect of spirodiclofen and pyridaben on T. urticae populations were 100 and 87.14 %, respectively at 3 days post-treatment compared to 100% in abamectin at all tested durations. In the residual efficacy test, abamectin caused 100% mortality of T. urticae at 7 days after spraying compared to 63.27 and 47.96 % in the case of spirodiclofen and pyridaben, respectively. However, no phytotoxicity was observed on treated plants at recommended rates. The determined residues of spirodiclofen and abamectin in cucumber fruits were above the maximum residue limit (MRL) amounts after 10 days of treatment, so the preharvest intervals (PHI) for both compounds were 15 days, while PHI for pyridaben was 10 days. Therefore, the cucumber fruits could be consumed safely after these periods.