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    Complex disorder (3)
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    Symptoms (6)
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    William M. Ciesla (6)
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    Pennsylvania Department of Conservation and Natural Resources - Forestry Archive (1)

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Forestry: Hardwood

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12 Images of 4 Subjects View Subject List View Image Details View Thumbnails

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Subject Scientific Name Images
ash decline 4
aspen decline 6
black ash decline 1
lignotubers 1

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