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Willow Tree Leaf Drop

Can anyone help please
Have a willow tree which seems to have excessive leaf drop 
You can see the yellow leaves on the tree and with a gentle breeze they fall off and it looks like it is snowing leaves :(
The leaves which have come off seem to have black spots on them. The tree does seem to be producing new leaves but then I think they are getting the black spots and falling.
one picture shows the leaf fall after about one hour of a gentle breeze, another of what fell over the night and another picture of the black spots on the leave and stems
We have only been in our house for 9 weeks and are not familiar with willow trees
The tree I would think is 20 - 30 years old


Posts

  • robairdmacraignilrobairdmacraignil Posts: 782
    edited June 2021
    It could be Willow anthracnose disease which this RHS page details and apparently weeping willow are particularly susceptible. The golden weeping willow I have planted is much more severely effected than your one but it has improved later in the summer in previous years and I hope as my own tree matures it is not as impacted by the disease. To me the one in your photo looks fairly healthy.

    Happy gardening!
  • JackABJackAB Posts: 2
    Thank yo for your comment.
    The tree does appear pretty healthy looking from a distance.
    Is there anything that I can put on the tree apart from spraying as the tree is too big to spray with a pesticide.
    Is it likely that the anthracnose disease will go on its own
  • DovefromaboveDovefromabove Posts: 88,147
    Hello @JackAB and welcome to the forum 😊 

    The more stressed a tree is the more likely it is to suffer from disease ... the stronger the tree the more likely it will be able to shrug it off ... willows need a great deal of water and we had a very dry spring ... March and April were almost entirely without rain ... so unless your tree is close to a riverbank or lake it’s roots are likely to be too dry, and now any rain we get is unlikely to penetrate the umbrella effect oh the trees canopy, so I would put a hosepipe near the roots and leave it to trickle gently for 24 hours. I’d probably do that at least once a fortnight for July and August too. 

    Hope that helps. It’s a lovely tree. 😊 

    Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.





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