Ask a Question forum→Apple Tree Disease?

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Lolo, Montana
Apr 18, 2018 3:35 PM CST
Hi there,

I have an old apple tree on my property that I'm worried about. It's been doing so well and produces like crazy every year. I'm in the process of pruning it, and it is covered in buds. There is a ton of new growth from last year. However, the bark is really peeling off the the trunk and several other splits off of the trunk and there is a flaky, yellowish looking bacteria or fungus where the peeling is present. I found the yellowish stuff on another branch that does not have peeling bark as well. What should I do?
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Name: Daisy I
Reno, Nv (Zone 6b)
Not all who wander are lost
Garden Sages Plant Identifier
Apr 18, 2018 5:25 PM CST

There is nothing obviously wrong with your apple tree. Peeling bark can be an indication of disease but, it should be accompanied by some sort of oozing or goopiness.

Peeling bark can also be a sign of rapid growth. The yellow is lichen growing on the tree and is harmless. As long as you don't see any lesions or oozing and the tree is growing, I think you are good.
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost

President: Orchid Society of Northern Nevada
Name: Big Bill
Livonia, Michigan (Zone 6a)
Orchids, peace and beauty
Region: United States of America Critters Allowed Growing under artificial light Echinacea Hostas Region: Michigan
Butterflies Lover of wildlife (Raccoon badge) Orchids Cat Lover Birds Bee Lover
Apr 18, 2018 6:12 PM CST
I think that it looks pretty good too.
Rodney Wilcox Jones, my idol!
Businessman, Orchid grower, hybridizer, lived to 107!
Minnesota (Zone 3b)
Apr 18, 2018 6:18 PM CST
Do you prune it often.
After I pruned mine I greatly regretted pruning too heavily. Branches came back gang busters but were never as strong as the old ones.
Seems to show sign of old age.
May still go on for many years.

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