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Posted
1 hour ago, AHPP said:

 

How big was the ash dieback experiment tree? Did you factor juglone toxicity into your experiment? At what age/size of walnut tree does it start happening?

It still is, it has got to about 7m now, each time I see signs of dieback I prune it out. The tree has a lot of leaf damage and some of the branches have been ring barked by something, wasps I think.

 

Interesting question about the allelopathic nature of walnut, I'll have to research it, I was vaguely aware but did not consider it.

 

Now I will have to mind it, as I have planted it alongside a purple spotted orchid I dug up from an extraction ride 30 years ago and it has flowered ever since in the little clod of clay soil I brought it home. it's  inside a pot topped up with my sandy garden soil and I have dug in a bit below normal surface .

 

Anyway I'm sure you got the point that life is a continuation and when things go wrong at least a new generation can carry on the genes.

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Posted

I thought juglones were secreted by the leaves / nuts / buds, not the roots? 

 

I've got a walnut tree I planted, now about 2m high, and lots of other plants are still growing around it... 

Posted
2 hours ago, sandspider said:

I thought juglones were secreted by the leaves / nuts / buds, not the roots? 

 

I've got a walnut tree I planted, now about 2m high, and lots of other plants are still growing around it... 

Do you clear up the leaf litter in autumn?

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