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Diseases - Stem Decays and Cankers

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2252011
2252011
robustus conk
Phellinus robustus
Symptoms
USDA Forest Service Archive

4213052
4213052
Phellinus heartrots
Phellinus spp.
Symptoms
USDA Forest Service Archive

2634073
2634073
Scleroderris canker of pine and spruce
Gremmeniella abietina
Symptoms
USDA Forest Service Archive

2634072
2634072
Diplodia tip blight
Diplodia pinastri
Symptoms
USDA Forest Service Archive

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