Harriet Browne asked 13 years ago
Can you please help. I have dark algae on gravel and can get rid of it. Swells up in wet conditions. qite slippery. tried weedkiller, mosskiller, lawn sand, and mogathon- No good. Have tried picking it up but very slow process. any suggestions?
1 Answers
Gerry Daly Staff answered 6 years ago
If possible, stir the gravel by raking to prevent settlement whcih encourages algae.
You could try some of the products used to control algae on house walls prior to painting, or household bleach.
