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Patio Black Spot Preventer stops unsightly black or white spot infestation on patios, driveways and pathways.
Specifically formulated to work on black lichen spores, it will remove them before they germinate, which avoids the use of harmful pesticides. It also removes green algae after 3-5 days on stonework.
When used annually, Patio Black Spot Remover will also prevent re-infestation of fungal growth after it has been removed with Patio Black Spot Remover.
How to use
- Apply on a dry day when rain is not forecast for 48 hours
- To treat 20m sq. fill a 5-7 litre pneumatic garden sprayer with 3 litres of water
- Add 1 litre Patio Black Spot Preventer - always add the preventer to the water
- Apply all the mixture to an area no larger than 20m sq. (4 x 5m)
- Saturate the surface
- Repeat for areas larger than 20m sq.
- Allow to dry - do not rinse
- If green algae appears in shaded areas during 12 months after application, simply retreat to make slippery stonework safe again
Refer to bottle for full instructions.
Coverage
- This 2.5 Litre Bottle will treat up to 50m sq.
