For use on all stone types. This product will treat a maximum area of 50 square metres.
Patio Black Spot Preventer will prevent 'Patio Black Spot' infestation on new terraces and pathways. When used annually, Patio Black Spot Preventer will also prevent re-infestation of 'Patio Black Spots' after they have been removed with our PATIO BLACK SPOT REMOVER. It specifically targets the Black Lichen spores, killing them before they can germinate, avoiding the use of harmful and impractical pesticides.
Patio Black Spot Preventer will also kill Green and Red Algae that grow on garden paths, patios and other decorative stonework.