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Month: Aug
Year: 2013
State: OR
County: Lane
Grower: Landscape
Host Category: woody ornamentals
Host Common Name: black walnut
Host Scientific Name: Juglans nigra
Symptoms: stem cankers and dieback
Parts affected: stem
Primary Pathogen Category: fungus
Diagnosis Common Name: Botryosphaeria canker and walnut twig beetles
Diagnosis Scientific Name: Botryosphaeria sp.
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