Walnut issues

[j r hartly]

Worked on a dying walnut tother day. Small foliage, at least 15% die back in whole crown and black weeping sap in main stem. Couldn't find any fruiting bodies. I know photos would have helped, but my phone is playing up on that front. Any ideas?

 

Also left a bit of a rash on our arms, that could of been the heat though

 

trees, waves and cakes!!:-)

[Paul Barton]

Could be the early symptoms of Honey fungus?

 

According to my books, grafted trees (Juglans regia grafted on to J. nigra) can get something called 'black line disease' which kills the phloem and cambium and results in a thin crown. It can be confirmed by cutting the bark at the graft line which reveals a black necrotic band of tissue circling the tree.

 

Did you notice if the tree was grafted? They are quite rare these days as nurseries stopped grafting Walnuts because of this problem.

[j r hartly]

Apparently its been in decline for a few years. Hasn't produced nuts for 3. Could be its time, about 100 years old. But thought they could live longer?????

 

trees, waves and cakes!!:-)

[muttley9050]

Get miling then bud.

[agg221]

Walnuts are known to live up to 500yrs, so at 100 it is not old.

 

Alec