unwell apple

[mal]

hello folks, any idea on what this on an apple tree? noticed it last year and has progress down the branch and appears to be getting worse. and if there is anything i can do to stop the spread. thanks

[Tony Croft aka hamadryad]

vuiliminia comedens the waxy curtain crust, The peeling bark being the "curtain" a fungus that is saprobic and is not the issue here, there is another problem causing the death/dysfunction, got a wider image?

[Tony Croft aka hamadryad]

Show me the whole tree, dont need focus on specific points, get the context

[mal]

ok, here is full picture

[Tony Croft aka hamadryad]

Why was the large pruning wound made? did this section die back, or was it pruned out for other reasons?

 

It appears there may be some canker, as well as the Saprobic and endophytic fungi, this is as a result of the massive amount od dysfunction caused and associated with this large wound and the resulting die back of a large portion of cambium. This may continue to progress or the tree may stabalise and adapt to the wounding and be left with a decayed region.

 

the rest of the tree and growth appears healthy, clear that all this is due to the wounding and localised to the area of connective tissues.

 

Dont do any more pruning other than removal of deadwood as the tre requires as much photosynthetic area as possible to allocate resources to deal with this issue.

 

and just keep an eye on it, see what happens.

[mal]

ok thank you, the section had already died back before it was removed, leaving the large wound.

[Tony Croft aka hamadryad]

Then this may get worse, difficult to say what is causing the die back in that case, though the canker may well be the major player.

 

Im not that familiar with fruit tree issues, shall get the pathology book out, got nothing else to do at the mo!

[mal]

ok thanks alot, much appreciated

[Gollum]

by the looks of your photos this is Bramley grown on m106 or m111,

Planted between 12 and 15 years ago,

the m106 is a vigorous root stock and the m111 is a drought resistant stock.

in the fruit industry the bark problem is called Papery bark canker,

most common on trees planted in wet laying areas,

the characteristics of these root stocks are that they produce plenty of wood and wood bud if they are planted in to favorable conditions.( rather than fruit bud)

then they are pruned hard to reduce the size of the tree thus promoting more woody growth.

check the drainage around the tree first.

[Tony Croft aka hamadryad]

by the looks of your photos this is Bramley grown on m106 or m111,

Planted between 12 and 15 years ago,

the m106 is a vigorous root stock and the m111 is a drought resistant stock.

in the fruit industry the bark problem is called Papery bark canker,

most common on trees planted in wet laying areas,

the characteristics of these root stocks are that they produce plenty of wood and wood bud if they are planted in to favorable conditions.( rather than fruit bud)

then they are pruned hard to reduce the size of the tree thus promoting more woody growth.

check the drainage around the tree first.

 

Nursery training! good stuff gollum:thumbup1: