Abstract: Eight commercial acaricides were evaluated in date palm plantations in Al-Gassim, Saudi Arabia, against the date mite Oligonychus afrasiaticus (McGregor). Neoron (bromopropylate 25% EC), Kelthane (dicofol 18.5% EC), Tedion (tetradifon 75.2 g L-1), Top Cop (73% S + 6.4% Cu, w/v), Microthiol Special (Sulfur 80% WP, Ekatin (thiometon 25% EC), were applied in sites 1 and 2. Peropal (azocyclotin 25% WP) and Transact (abamectin 1.8% EC), in addition to Kelthane, Tedion and Neoron were used in site 3. Based on the percentage of web formation on date bunches all treatments, except Ekatin, reduced mite infestations significantly below that of the untreated check by the 7th, 27th and 21st days after treatment (DAT) in sites 1, 2 and 3, respectively. Kelthane and Neoron significantly reduced mite infestation in the 3 sites after the second week from application and continued until the termination of the experiment. The effect of Microthiol Special was excellent until 35 DAT in site 1, when it gradually declined up to the end of the trial. Top Cop’s action was clear from week 3, however, it declined from the 5th week in site 1. Ekatin knocked down initial infestations in both sites but rapid build up of infestation was observed in 13 and 28 DAT in sites 2 and 1, respectively. Best control obtained in site 3 was in the Neoron, Kelthane and Transact treatments, followed by Peropal and Tedion whose effect did not sustain to the end. The overall performance of the acaricides, determined according to their ability to reduce the mite infestation, compared to the control throughout the experiment, was 96.8, 96.3, 95.2, 83.8, 81.7, 80.6, 79.0 and 30.2%, for Transact, Kelthane, Neoron, Peropal, Tedion, Microthiol, Top Cop and Ekatin, respectively. No significant differences were found in date weights between treatments.