Abstract
Studies on the Relative efficacy of different acaricides against mushroom mites (Pygmephoroidae) were carried out in the Acarology Research Laboratory Department of Agri. Entomology University of Agriculture Faisalabad. The acaricides used included dicofol 18.5 EC with three concentrations (1.5ml/L, 2.0ml/L, and 2.5ml/L), abamectin 1.8 EC (1.5mI/L, 2.0ml/L, and 2.5ml/L) and hexythiazox 10WP (0.25g/L, 0.35g/L and 0.45g/L). All the acaricides used gave significant reduction in the mite population and gave satisfactory results as compared to untreated check. On numerical basis the highest mite population suppression (95.30%) was recorded by the application of abamectin 1.8 EC at 2.5ml/L after 72 hours, followed by (94.68%) and (90.11%) with dicofol 18.5 EC at 2.5ml/L after 72 hours and hexythiazox 10 WP at 0.35g/L after 72 hours. Key words: Relative efficacy, mushroom, acaricides mite and wheat straw compost.