powdery mildew, help!

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powdery mildew, help!

Post by richard leid » Mon, 22 Sep 1997 04:00:00



i've been away from my Garden (in Berkeley, CA) for
a while and upon returning i've noticed most of my
flowers have become covered with powdery mildew.  
When i looked in my Sunset garden book they could
only suggest toxic poisons, i'd prefer using something
that wouldn't poison my pets or the ground water.
any suggestions?
thanks
katherine murphy

 
 
 

powdery mildew, help!

Post by Dave Lor » Tue, 23 Sep 1997 04:00:00


I've used a baking soda solution on roses with
good success. I believe it's 1 1/2 teaspoons of
baking soda and a couple drops of dishsoap in a quart
of water. Apply weekly during the mildew season.
Rinsing the leaves off with a hose spray occasionally
will discourage mildew also, reapply the baking soda
afterwards.

Dave

Quote:

> i've been away from my garden (in Berkeley, CA) for
> a while and upon returning i've noticed most of my
> flowers have become covered with powdery mildew.
> When i looked in my Sunset garden book they could
> only suggest toxic poisons, i'd prefer using something
> that wouldn't poison my pets or the ground water.
> any suggestions?
> thanks
> katherine murphy

 
 
 

powdery mildew, help!

Post by d.. » Tue, 23 Sep 1997 04:00:00


Quote:

> i've been away from my garden (in Berkeley, CA) for
> a while and upon returning i've noticed most of my
> flowers have become covered with powdery mildew.
> When i looked in my Sunset garden book they could
> only suggest toxic poisons, i'd prefer using something
> that wouldn't poison my pets or the ground water.
> any suggestions?
> thanks
> katherine murphy

Wish I had a good suggestion, but most of our solutions are preventive
in nature, not cures for existing attacks of PM.

We also have a climate that is bad for PM, and I've found that choosing
varieties that are resistant is the best defense.

There is a German product that we're experimenting with that makes
leaves form extra-thick waxy layers, and is supposed to be a good
preventative as well as an insect deterrant.  Seems to have some
promise, but again is no help for an existing problem.

I've read about some home-remedies that involve small amounts of vinegar
and baking soda and Safer's soap, but haven't tried them.

Good luck,

Don Chapman
Bio/Organics Supply Center
Camarillo CA
<http://www.bio-organics.com>

 
 
 

powdery mildew, help!

Post by succubus jon » Wed, 24 Sep 1997 04:00:00



Quote:

> i've been away from my garden (in Berkeley, CA) for
> a while and upon returning i've noticed most of my
> flowers have become covered with powdery mildew.  
> When i looked in my Sunset garden book they could
> only suggest toxic poisons, i'd prefer using something
> that wouldn't poison my pets or the ground water.
> any suggestions?
> thanks
> katherine murphy

I use a mixture of very diluted dish soap, rubbing ***, and Murphy's
Oil. My totally unscientific conclusion is -- it really has made a big
difference. Powerdy mildew is now a slight problem where it once was a
*** pain-in-the -ass constant. Didn't use a control group -- no double
blind experiments -- I just spray this stuff abot once a week and, by gum,
I have a lot less powdery mildew than I did when I didn't use it.

Judy "I Am Not Madame Curie or Luther Burbank" Woodruff

Indy Zone 5

--

Don't like my driving? Call 1-800-BITE-ME.