Algae in the Greenhouse
 

I'm getting algae growth in the greenhouse. The glass is easy...I just
squeegee it when there's condensation on it. My problem is on the aluminum
and brick.

Should I worry about it? What should I use to get rid of it?

Gene

Algae in the Greenhouse
 

Gene -
My greenhouse is glazed with polycarbonate rather than glass, but has an
aluminum frame. Algae have never done any harm, but they can sure create
unsightly muck about the base of the walls. I've had good luck keeping algae
under control by spraying all the surfaces involved with a 10% solution of
Clorox in water, and then hosing those surfaces down with a strong stream of
plain water, a few hours later.
Tom
From: "Gene Schurg"
Organization: EarthLink Inc. -- http://www.EarthLink.net
Reply-To: "Gene Schurg"
Newsgroups: rec.gardens.orchids
Date: Sun, 27 Apr 2003 02:45:11 GMT
Subject: Algae in the Greenhouse

I'm getting algae growth in the greenhouse. The glass is easy...I just
squeegee it when there's condensation on it. My problem is on the aluminum
and brick.

Should I worry about it? What should I use to get rid of it?

Gene

Algae in the Greenhouse
 

If you leave the stuff there, it just provides a breeding ground allowing it
to spread.

I am not aware of any chemical remover that wouldn't harm your plants as
well.

I pressure wash the entire GH to remove it, and then try to remember to
spray with 1% bleach about monthly as a preventive measure. I recently
bought some "Greenshield" which is supposed to be really effective and last
longer between applications.
--

Ray Barkalow First Rays Orchids
http://www.firstrays.com
Secure Online Ordering & Lots of Free Info!


"Gene Schurg" wrote in message
rthlink.net...
I'm getting algae growth in the greenhouse. The glass is easy...I just
squeegee it when there's condensation on it. My problem is on the
aluminum
and brick.

Should I worry about it? What should I use to get rid of it?

Gene

Algae in the Greenhouse
 

On Sun, 27 Apr 2003 02:45:11 GMT, "Gene Schurg"
wrote:

I'm getting algae growth in the greenhouse. The glass is easy...I just
squeegee it when there's condensation on it. My problem is on the aluminum
and brick.

Should I worry about it? What should I use to get rid of it?

Gene


Physan 20 will inhibit regrowth..

Algae in the Greenhouse
 

I'm getting algae growth in the greenhouse. The glass is easy...I just
squeegee it when there's condensation on it. My problem is on the aluminum
and brick.

Should I worry about it? What should I use to get rid of it?

Gene

I spray the glass, benches, and walks every week with one percent bleach. I
make no effort to keep any splashing off of plants. I have seen no problem
after doing this for about 4 years. It certainly keeps the algae under control.
I picked this up from Geo Vasquez, at Zuma Canyon Orchids.
Wilford Neptune

Algae in the Greenhouse
 

I've used GreenShield for 10 years. It's great for killing algae & fungus on
just about any surface. It's chemically similiar, if not identical, to
Physan and most of the chemicals sold as pool algicides. I haven't checked
out the exact formulas, but I know I haven't had any toxicity on any plants
hit with the GreenShield or Physan at algicide levels. Most are quartenary
ammonium compounds. I also haven't had any skin problems when working with
them without gloves. I wouldn't be without these.

"Ray @ First Rays Orchids" wrote in message
...
If you leave the stuff there, it just provides a breeding ground allowing
it
to spread.

I am not aware of any chemical remover that wouldn't harm your plants as
well.

I pressure wash the entire GH to remove it, and then try to remember to
spray with 1% bleach about monthly as a preventive measure. I recently
bought some "Greenshield" which is supposed to be really effective and
last
longer between applications.
--

Ray Barkalow First Rays Orchids
http://www.firstrays.com
Secure Online Ordering & Lots of Free Info!


"Gene Schurg" wrote in message
rthlink.net...
I'm getting algae growth in the greenhouse. The glass is easy...I just
squeegee it when there's condensation on it. My problem is on the
aluminum
and brick.

Should I worry about it? What should I use to get rid of it?

Gene

Algae in the Greenhouse
 

One other thing to consider - don't know where you live or if you have slug
problems but if you do, they love the algae and seem to prefer it to plants.
If you go out at night and turn on a light in your greenhouse, they're easy
to spot.

"Gene Schurg" wrote in message
rthlink.net...
I'm getting algae growth in the greenhouse. The glass is easy...I just
squeegee it when there's condensation on it. My problem is on the
aluminum
and brick.

Should I worry about it? What should I use to get rid of it?

Gene

Algae in the Greenhouse
 

I'll second the Physan 20. It's rated safe for hospitals and food prep
areas and claims to work great on fungus and other creepy stuff. There's a
recipe for dipping cutting utensils and roots of new or infected plants,
etc. AND it kills algae. I've used it in my greenhouse for years. You can
get it at Hausermann's Orchids in the Chicago area.

Bob


Physan 20 will inhibit regrowth..




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Algae in the Greenhouse
 

Though not strictly a botanical use - I have found Physan to be safe on my
dogs and cats when they have fungal infections on the skin. Mind you - it
was on the vet's recommendation. Haven't tried it on Athlete's Foot,
though

I guess it can't be all bad

Siew Hong


On 5/16/03 7:32 AM, in article , "Robert"
wrote:

I'll second the Physan 20. It's rated safe for hospitals and food prep
areas and claims to work great on fungus and other creepy stuff. There's a
recipe for dipping cutting utensils and roots of new or infected plants,
etc. AND it kills algae. I've used it in my greenhouse for years. You can
get it at Hausermann's Orchids in the Chicago area.

Bob


Physan 20 will inhibit regrowth..




-----= Posted via Newsfeeds.Com, Uncensored Usenet News =-----
http://www.newsfeeds.com - The #1 Newsgroup Service in the World!
-----== Over 80,000 Newsgroups - 16 Different Servers! =-----

Algae in the Greenhouse
 

'll second the Physan 20. It's rated safe for hospitals and food prep
areas and claims to work great on fungus and other creepy stuff. There's a

You can find a less expensive version at most pool chemical supply retailers.
It sells in gallon containers for about $20.

Algae in the Greenhouse
 

'll second the Physan 20. It's rated safe for hospitals and food prep
areas and claims to work great on fungus and other creepy stuff. There's a

You can find a less expensive version at most pool chemical supply retailers.
It sells in gallon containers for about $20.

Even less expensive is Bleach. A gal costs .79$, and I use it as a spray at %1,
and it works fine.

Wilford Neptune

Algae in the Greenhouse
 

On 18 May 2003 18:18:47 GMT, (WNeptune) wrote:

Even less expensive is Bleach. A gal costs .79$, and I use it as a spray at %1,
and it works fine.

How have you found the residual action of sodium hypochlorite compared
to Physan 20 in preventing algae regrowth?

Algae in the Greenhouse
 

Hi Wilford, I have a spray bottle which holds 24ozs. How much bleach would I
use?
Can you spray it on the plants?
Cheers Wendy
"WNeptune" wrote in message
...

'll second the Physan 20. It's rated safe for hospitals and food prep
areas and claims to work great on fungus and other creepy stuff. There's
a

You can find a less expensive version at most pool chemical supply
retailers.
It sells in gallon containers for about $20.

Even less expensive is Bleach. A gal costs .79$, and I use it as a spray
at %1,
and it works fine.

Wilford Neptune

Algae in the Greenhouse
 

Hi Wilford, I have a spray bottle which holds 24ozs. How much bleach would I
use?
Can you spray it on the plants?
Cheers Wendy

24oz is 144tsps, divided by 100 gives roughly 1.5 tsps. This would be quite
safe, as Wilbur Chang, in HI, uses 2%.
I make no effort to spray plants, but make no effort to keep it off of plants.
It is used to control algae on the glass, benches, and walks.
I've been using this in the greenhouse, every week for over 6 years, and have
not seen any problems that i can detect with the plants.

Wilford Neptune

Algae in the Greenhouse
 

Thanks much for the math lesson Wilford. Cheers Wendy
"WNeptune" wrote in message
...

Hi Wilford, I have a spray bottle which holds 24ozs. How much bleach would
I
use?
Can you spray it on the plants?
Cheers Wendy

24oz is 144tsps, divided by 100 gives roughly 1.5 tsps. This would be
quite
safe, as Wilbur Chang, in HI, uses 2%.
I make no effort to spray plants, but make no effort to keep it off of
plants.
It is used to control algae on the glass, benches, and walks.
I've been using this in the greenhouse, every week for over 6 years, and
have
not seen any problems that i can detect with the plants.

Wilford Neptune