cankers gravenstein apple tree
I ordered a gravensteine tree from grower in Oregon two years ago. It has done well but this year it has cankers large and small. What can cure this? Joanne
Thank you for your question, Joanne. It would be helpful to know where in the state you are, and what the abnormalities look like. Without that information, I can only furnish general information. Here is an article about apple scab: http://cru.cahe.wsu.edu/CEPublications/pnw582/pnw582.pdf Here is a second about apple anthracnose: http://treefruit.wsu.edu/crop-protection/disease-management/apple-anthracnose/ With more information, we might be able to help more. Or you can contact your county Extension office directly. Good luck!