cankers gravenstein apple tree

Asked July 20, 2018, 11:50 PM EDT

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

Oregon apples

1 Response

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!