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 Botanic Garden >> Gardening >  >> Question and Answer >> Plant Diseases

Oak Tree Black Spots on Trunk: Need Photos for Canker ID

Keystone Heights, FL: black spots ½–2″ on oak trunks. Think it's killing them. Cure?

Likely Fungal Canker

Black spots on bark = canker or fungal fruiting bodies. Send photos to byrd59@bellsouth.net subject "allexperts" for ID.

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