Kill Nostoc Algae


nostoc algae

Want to get rid of that unattractive green brown mess on your driveway or paths? Spik & Span is the product for you. That firm or gelatinous growth on the soggier parts of your property is Nostoc algae. Nostoc algae thrives in over-watered or consistently moist, sunny areas. Although it is not hazardous to plants or animals, it is dangerously slippery and unattractive.


Nostoc is a very resilient algae that can lay dormant for several years. It is able to be killed off with Spik & Span at a higher level of concentration. It may need to be spot resprayed in 6 months time in case any areas were not treated on first application.

 Spray the affected areas liberally.

The Moss and Mould Killer will not affect the lawn or any surrounding garden plants.

The algae will start to die in 2-3 days, and is usually dead in 2-3 weeks.


If you have pets and young children, allow applied Spik & Span to dry first before allowing them onto the surface

If you have a job larger or trickier than a DIY job within Auckland  (high roofs, large area etc) we can also professionaly wash and treat your home, building  or property. See our sister business or call 0800 88 11 23 for a free, no obligation quote. Sorted!