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Month: Apr
Year: 2010
State: OR
County: Yamhill
Grower: Nursery/Garden Center
Host Category: woody ornamentals
Host Common Name: summersweet
Host Scientific Name: Clethra alnifolia
Symptoms: black root rot
Parts affected: root
Primary Pathogen Category: fungus
Diagnosis Common Name: black root rot
Diagnosis Scientific Name: Thielaviopsis basicola
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