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Moss or algae? How to eliminate?

Posted by thisbetty 7b (My Page) on
Sat, Feb 23, 13 at 17:04

There is greeny/yellow film on large parts of my shady brick patio, which I can't eliminate - it always comes back. It also appears in moderate sun. I have true mosses growing in crevices in the sunny patio.

The film bothers me more - scrubbing, baking soda, lime,
Clorox, Comet, 409- the film is removed temporarily but returns gradually. Accumulated winter leaves increase the problem - but it is in other areas without leaves - and is very slippery when wet..

I would really appreciate your experience and advice.
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Follow-Up Postings:

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RE: Moss or algae? How to eliminate?

PS

Bricks are laid in sand - so no pressure wash.


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RE: Moss or algae? How to eliminate?

The concrete steps on our back porch get slippery and slimy too. I pour a little bleach on there, let it sit for a few minutes, scrub with a brush or hard broom, then rinse. You can't keep it from coming back, AFAIK, just clean when necessary. If it's a bunch of separate stones, you could fill a squirt bottle with diluted bleach and spray them. If you do often enough, scrubbing probably wouldn't be necessary, IDK.


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RE: Moss or algae? How to eliminate?

I have argued with my Mom for years about this. I will NOT put harsh chemicals on my property, slime or no slime. Just get used to it!


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RE: Moss or algae? How to eliminate?

I don't own any gardening chemicals, but someone could be seriously injured slipping on the steps, probably me. Keeping them free of slime, necessary about once a year, is not an option. It's not a visual issue, it's a safety issue. Bleach is what I use to clean everything, and definitely kills mold and mildew.


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RE: Moss or algae? How to eliminate?

Thanks.

A permanent solution would be nice, but we do the best we can with what we have. It is hard work and it is a little less trouble if I keep the patio really clean (leaves, potting soil, etc.)


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