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Bio roof weeds

Have just weeded the bio roof, which is on our single storey extension. The mosses are beginning to get smothered by the weeds. If I apply weed killer will it kill the mosses too? Would appreciate any advice. Thanks


  • nutcutletnutcutlet Posts: 27,359

    I should think so. Weedkillers can't tell one plant from another

    In the sticks near Peterborough
  • Busy-LizzieBusy-Lizzie Posts: 23,155

    When I put glyphosate on the paths the mossy bits go yellow.

    Dordogne and Norfolk. Clay in Dordogne, sandy in Norfolk.
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