Fuji apple I

Asked December 4, 2017, 5:43 PM EST

Tree is about. 4 yrs old. Now has 4-5 quarter sized area s with raised round bumps. No oozing ..

Tillamook County Oregon

2 Responses

I think that the tree has Nectria canker. It appears that the lesions are at pruning sites or leaf scars. Here is a link to information about the diseases.

https://pnwhandbooks.org/plantdisease/host-disease/apple-malus-spp-nectria-canker-european-canker

Chemical controls that have the "O" in a box are approved for organic production.

Please contact me if you need additional information or have questions.

Another expert has suggested that it might be Burrknot. When I was able to open the picture in a larger window and see it more clearly, I think this diagnosis is correct. Here is the link to information about Burrknot from the PNW Disease Control Handbook.

https://pnwhandbooks.org/plantdisease/host-disease/apple-malus-spp-burrknot