DISEASE CONTROL Alternaria leaf spot Cercospora leaf spot Powdery mildew Pythium damping off and root rot Rhizoctonia damping off and root rot Root knot nematode Sclerotinia white mold Septoria blight TABLE 3-25. IMPORTANCE OF ALTERNATIVE MANAGEMENT PRACTICES FOR DISEASE CONTROL IN PARSLEY AND CILANTRO A. Keinath, Plant Pathologist, Clemson University Scale: E, excellent; G, good; F, fair; P, poor; NC, no control; ND, no data. Strategy Avoid field operations when leaves are wet Avoid overhead irrigation Biofungicide Change planting date Suppressive cover crops Crop rotation with non-host Deep plowing Destroy crop residue Encourage air movement Flooding(where feasible) Increase soil organic matter Hot water seed treatment Plant in well-drained soil Plant on raised beds Plastic mulch bed covers Postharvest temperature control Reduce mechanical injury Soil solarization Pathogen-free seed Resistant/tolerant cultivars Weed control G G ND NC NC E G G G NC NC ND P NC NC NC NC F E NC P G G ND NC NC E G G G NC NC ND P NC NC NC NC F E NC P NC NC F NC NC NC P P P NC F NC NC NC F NC NC NC P NC F NC NC ND NC NC P NC NC P NC P NC E E F NC NC P NC NC NC NC NC ND E (early) NC P F F NC F P NC G G F NC P F NC P NC NC NC ND E (early) F P P P NC G F NC NC NC NC NC NC F NC NC F P G F G (late) NC F F P E G NC NC F F P E G P P NC F G G ND NC NC E G G G NC NC E P NC NC NC NC F E F P 248 2023 Vegetable Crop Handbook for Southeastern United States