Contorted Willow

Discussion in 'Trees' started by raebhoop, Jul 10, 2012.

  1. raebhoop

    raebhoop Gardener

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    I have one of these in heavy soil in it's second year of planting...around 12 feet high.Over the whole tree at the very extremities of the branches small clumps of leaves have died.
    It still looks fine and is growing vigorously, but I am curious as to a possible cause.needless to say there is no shortage of water this year.

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  2. shiney

    shiney President, Grumpy Old Men's Club Staff Member

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    Could be wind damage but sounds a bit unusual that it's occurring all over the tree. They're pretty tough trees with not much that attacks them.

    The two main problems for willows that cause the leaves to shrivel and die (scab and anthracnose) don't appear to be the cause. Scab causes black spots and the leaves shrivel and turn black. Anthracnose also causes black spots and can cause blister like bubbles to appear on the shoots as well.

    Keep a close eye out for the spots appearing before the leaves shrivel. If you see any stems that are forming the lesions you need to prune and burn them. Don't leave them on the ground.

    Contorted willows don't usually get these problems.

    I don't know anything about chemical controls for willows.
     
  3. Liz

    Liz Gardener

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    That is strange, as Shiney says usually no problems with willows, but last year I had one with similar problems. As it was getting too big I cut it back to bush size, and very little has grown this year. My neighbour has a large one which is showing similar symptoms this year, and as you say no lack of water.
     
  4. Spruce

    Spruce Glad to be back .....

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    Hi

    its got a fungus (bacterial blight & powdery mildew) spray with a rose fungiside it will help clear it up , repeat again in 4 weeks time , in the winter clear away all the fallen leaves and burn them if you can .

    Give it a good mulch in early spring and spray just as the buds are opening .

    Spruce
     
  5. TreeTreeTree

    TreeTreeTree I know sh!t about trees

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    Hey!? :huh:
    That's quite a confident statement to make when the photo shows no signs of either. I'd agree with shiney on the causes, but further investigation would be required in order to fully diagnose the problem.
     
  6. raebhoop

    raebhoop Gardener

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  7. raebhoop

    raebhoop Gardener

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    Following my post above...the willow in the rear garden has leaves that are very pale and dropping already...for a few weeks now.
    Meanwhile another in the front garden has leaves dark in colour and generally looks a lot healthier...no leaves dropping as yet.

    Any further comments please...

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  8. shiney

    shiney President, Grumpy Old Men's Club Staff Member

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    It's not unusual for leaves to go pale and drop at this time of year. Willows tend to drop some of their leaves even in the middle of summer and then accelerate the drop from this time of year.

    The annoying thing with them is that they don't do the convenient thing of dropping their leaves quickly once the frosts have come. They cling onto some of them right through the autumn and into winter so that you are continually having to clear dead leaves.

    Both your trees seem quite normal to me (they never copy the same pattern as each other) and the few dead leaves you can see are also normal. That tends to happen towards the ends of the branches where they can get wind damaged (they tend to move around more at the end of branches) or just bashed about by other branches.
     
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    • raebhoop

      raebhoop Gardener

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      Thank you....I'll stop worrying about them now and see what the new year brings...ie maybe a warmer less windy spring...:)
       
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