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Can anyone recommend an organic sulphur treatment for black spot on my Viburnum?

Jane_in_NorfolkJane_in_Norfolk Posts: 33
in Problem solving
I don't want to use a chemical fungicide, I'd prefer to be chemical-free. So something natural and organic would be ideal. 

Posts

  • amancalledgeorgeamancalledgeorge Posts: 2,736
    Guess what everything that's natural and organic is still chemical. Most sulphur containing products were banned in the UK because of the possibility of poisoning waterways. A long list of all banned agrochemicals for the non professional: https://www.rhs.org.uk/advice/profile?pid=820
    To Plant a Garden is to Believe in Tomorrow
  • Jane_in_NorfolkJane_in_Norfolk Posts: 33
    amancalledgeorge said:
    Guess what everything that's natural and organic is still chemical. Most sulphur containing products were banned in the UK because of the possibility of poisoning waterways. A long list of all banned agrochemicals for the non professional: https://www.rhs.org.uk/advice/profile?pid=820


    Oh Lord, I didn't know that! Is there ANYTHING natural that would be an effective fungicide for black spot on the leaves of my Viburnum?
  • Pete.8Pete.8 Posts: 11,340
    There's an article here-
    https://www.learningwithexperts.com/gardening/blog/leaf-spot-of-evergreen-shrubs
    that suggests hard pruning is the way to go (V davidii about 1/2 way down)

    I think the spotted leaves will die and fall off anyway sooner than they usually would.
    It may be your best option.
    As it mentions in the article, even a fungicide will not repair the damaged leaves.

    Billericay - Essex

    Knowledge is knowing that a tomato is a fruit.
    Wisdom is not putting it in a fruit salad.
  • Jane_in_NorfolkJane_in_Norfolk Posts: 33
    Thanks Pete!
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