Apple Tree - Burl or Gall?

General Fruit Growing
1

I’ve looked at dozens of photos online but I just can’t figure it out. Any idea if this is burl or gall? Thank you!

Apple-Tree-1
Apple-Tree-14160×3120 3.11 MB

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Apple-Tree-3
Apple-Tree-34160×3120 2.41 MB

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3

I don’t know, but I get them on my pear.

4

I get something similar on my espalier apples trained as Belgian fence. Occurs when branches intentionally cross or unintentionally rub on wire. Knobby spurs, no weeping.
Was trunk rubbing on a support?
IMG_0890

5

Thanks for the idea. I don’t see any evidence of rubbing on this tree.

6

Looks like burr knot to me.

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7

I agree.

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8

Thanks, everyone! I’ll go with burl/burr knot.

9

What variety of apple is that ?

10

It’s my friend’s and she isn’t sure. She was told 5 different varieties of apples were grafted to it.

11

Hi Folks,
I have 2 espalier apples where the burs started on the main stem them moved on to several cordons. I was about to pull them out but I am hearing that the burs are harmless.
Has any one had the spread out of control, hurt their tree, or slow fruit production?
Thanks Big SIr

12

I have a couple trees that have it and one is a rootstock where the grafted variety had died and I top worked it to other varieties, and it doesn’t spread to other varieties. I think it forms on specific varieties as they start to get older and start having thicker bark or wrinkles in the bark that stays wet longer so it tries to grow roots there.

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