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Month: Apr
Year: 2010
State: OR
County: Linn
Grower: Farm
Host Category: field crops
Host Common Name: pea
Host Scientific Name: Pisum sativum
Symptoms: blackening, dieback, rot
Parts affected: leaf stem
Primary Pathogen Category: fungus
Diagnosis Common Name: black stem
Diagnosis Scientific Name: Phoma spp. and Ascochyta pisi
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