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We have a Salix alba tree of about 45 years old. A couple of years ago there was a fungus growing on the trunk which I removed. This autumn we have noticed a wide black stripe running down the trunk to the ground below where the fungus was growing.

Is this black stripe linked to the fungus and is there anything we can do or is the tree doomed?

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    Please add a photo of the trunk.
    – Jurp
    Commented Dec 17, 2023 at 15:03
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    Gut feeling: Fungus. Because what you removed was just the fruiting body of the fungus. But please add a photo.
    – Stephie
    Commented Dec 17, 2023 at 17:27
  • @Stephie - yeah, probably due to the proximity to the removed fungus (would love to know if it was a shelf fungus), but black streaks can also be slime flux if there's fluid at the top of the streak. Need the photo soon or I'll vote to close.
    – Jurp
    Commented Dec 19, 2023 at 0:23

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