|Phytophthora root rot||Plants are stunted and then wilt, yellow, and die. Roots with few feeder roots die. Stem wood at the soil level has red-brown discoloration. No obvious fungal fruiting structures are formed.||Phytophthora||Purchase disease-free plants. Especially inspect southern-grown, containerized material before planting. Use clean, disinfested tools. Following a positive diagnosis, remove infected plants. Avoid overhead watering. Apply a fungicide to protect healthy plants.|
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