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Is this Walnut about to Die?


Billhook
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W

These pictures were taken today May 29th and this Walnut tree is only just starting to bud.

It did exactly the same thing last year, looking dead until June but burst out into full leaf eventually, with no dead limbs.

The leaves were much browner than the other Walnuts in the field which are way ahead in terms of leaf.

There is a lot of lichen on the branches.

 

Is this the start of the death of the tree or do some Walnuts carry on for years like this?

 

It was planted in 1871 so it may be nearly 150 years old.

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It certainly came back from the dead last year, but the amount of lichen on the branches worries me.

 

On the plus side it does seem to be evenly late all over with no dead branches anywhere

 

What is the natural lifespan of a Walnut?

 

There are two on the other side of the park with smaller trunks which have died, but they had a hollow rotted out trunk due to water ingress higher up. This one seems to be sound in that department.

 

Nothing I can do about it if it is just old age, but it would be depressing to see it go as it dominates the view from our house to the parkland.

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Walnuts can exceed 500yrs, so this is a youngster, although like anything some live longer than others.

 

Extension growth is very limited. Any sign of damage at the base from the cows? If you are looking to help it along then a mulch out to the drip line with rosaceae chip and keeping the cows away from the trunk wouldn't do any harm. Other treatments could include sugar solution, but really David Humphries is your man for ideas on suitable strategies.

 

I wouldn't be particularly worried about late leafing - some varieties will do this so it could just be genetic. It's an advantage in getting a better crop of nuts in frost prone areas.

 

Alec

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