Pieris Phytophthora Root Rot: Prevention and Management

Disease Reference Table

Disease	Symptoms	Pathogen/Cause	Management
Phytophthora Root Rot	Plants stunted then wilt, yellow, die. Roots with few feeder roots die. Stem wood at soil level has red-brown discoloration. No obvious fungal fruiting structures.	Phytophthora	Purchase disease-free plants. Especially inspect southern-grown, containerized material before planting. Use clean, disinfested tools. Following positive diagnosis, remove infected plants. Avoid overhead watering. Apply fungicide to protect healthy plants.

Plant Disease: Crinkled Pepper Leaves: Virus, Insects, or Environmental Stress?; Calceolaria Disease Management: Botrytis and Phytophthora Control; Fuchsia Disease Management: Rhizoctonia Root Rot and Rust Control; Gazania Disease Management: Downy Mildew and Pythium Root Rot; Norfolk Island Pine Disease Management: Anthracnose, Root Rot, and Cultural Disorders; Euonymus Diseases: Anthracnose and Crown Gall Management; Privet Diseases: Gall and Twig Blight; Scheduling Disease Control in Woody Ornamentals: A Seasonal Approach; Common Plant Diseases: Causes, Symptoms, and Prevention; Blueberry Mummy Berry Disease: Breaking the Cycle

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