Kill Nostoc Algae


nostoc algae

Want to get rid of that unattractive brown nostoc algae on your driveway or paths ? Spik and Span is the product for you. Those firm, gelatinous balls on the soggier parts of your property are Nostoc algae. Nostoc algae thrives in over-watered or consistently moist, sunny areas. Although it is not hazardous to plants or animals, it is terribly unattractive.


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


In your garden sprayer, mix 1 part Moss and Mould Killer to 5 parts water, eg: 500ml Moss and Mould Killer to 2.5 L of water.

Spray the affected areas liberally with this diluted solution.

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 the Moss and Mould Killer to dry first before allowing them onto the surface