Sulfur, the acaricide cyhexatin (Plictran 50W), and the fungicides benomyl (Benlate 50W) and fentin hydroxide (Duter 50W) were field tested against the pecan leaf scorch mite (PLSM),Eotetranychus hicoriae(McGregor), and other mites found on pecan foliage. All materials were toxic to the tydeid, tenuipalpid, phytoseiid, and eriophyoid mites present. Sulfur and cyhexatin acted rapidly and were the most toxic. Depending on species, benomyl and fentin hydroxide caused 40 to 90% reduction within 14 days. Pesticide effects on PLSM were inconclusive because of large variance associated with the populations. Benomyl and fentin hydroxide treatments resulted in change of relative abundance of phytoseiid species.