Re: powdery mildew on crepe myrtle

Welcome back Godi.
----- Original Message -----
From: "MICHAEL HABIB" <godihabib@verizon.net>
To: <gardenchat@hort.net>
Sent: Wednesday, October 12, 2005 10:14 PM
Subject: Re: [CHAT] powdery mildew on crepe myrtle


> Marge,
> Thank you, thank you for the powdery mildew recipe.
> I printed it out last time you posted it, but this is easier than
rummaging
> through some files.
> I bought some lovely phlox at our farmers market about a month ago, meant
to
> plant them right away, ha, ha. (Very busy with family visiting from
> Germany).
> They are still in their pots and covered with p.m. I shall try the
solution
> tomorrow.
> I have been off the list for quite a while, but am back with broadband!!!!
> Godi, zone 7
> Mt. Vernon VA
> ----- Original Message -----
> From: "Marge Talt" <mtalt@hort.net>
> To: <gardenchat@hort.net>
> Sent: Wednesday, October 12, 2005 12:52 AM
> Subject: Re: [CHAT] powdery mildew on crepe myrtle
>
>
> >> From: Theresa <tchessie1@sbcglobal.net>
> >> What works to get rid of this?  My mom in Austin has several plants
> > that
> >> are severely effected.  Help!
> > ----------
> >
> > Powdery mildew is usually weather related and seldom does lasting
> > harm to the host plant tho' it can make them look pretty bad.
> >
> > You can't really 'get rid' of it easily, but you can stop it
> > spreading on with the good old baking soda recipe and I understand
> > the milk recipe also works - have not personally used that one.
> >
> > Here they are:
> >
> > Baking Soda - was tested on roses at Perdue  and found to be more
> > effective than chemical fungicides:
> >
> > To 1 gallon of water, add
> > 3 tablespoons of baking soda,
> > 1 teaspoon of
> > horticultural oil
> > 1 teaspoon of
> > dishsoap (as in liquid, like Joy)
> > Apply every week to 10 days by spraying ... remove infected
> > leaves.   Also, spray the ground around the plant.
> >
> > Milk:
> > (quotes from posts saved)
> >
> > An article in the Oct 16th (no idea of what year) New Scientist
> > describes the use of
> > milk as a fungicide to combat powdery mildew.
> >
> > "Milk's fungicidal powers were discovered by Wagner Bettiol of the
> > environmental laboratory of Embrapa, the Brazilian Agricultural
> > Research Corporation, n Jaguariuna, north of Sao Paulo. Bettiol, who
> > was looking for cheap ways to control plant pests, observed that
> > byproducts from milk-processing factories killed powdery mildew on
> > courgettes. So he decided to simply spray fresh milk on the plants to
> > see if it had the same effect. To his surprise, he found that it did.
> > In fact, spraying heavily infected plants twice a week with a mixture
> > of one part cow's milk to nine parts water was at least as good at
> > stopping mildew as the chemical fungicides fenarimol and benomyl,
> > Bettiol discovered."
> >
> > another saved post:
> >
> > Some people have compared different dilutions and found that
> > the 1:9 often necessitated a second or third treatment, but the 1:3
> > or 1:4
> > took care of the fungus first time around.
> >
> > Marge Talt, zone 7 Maryland
> > mtalt@hort.net
> > Editor:  Gardening in Shade, Suite101.com
> > Shadyside Garden Designs
> > -----------------------------------------------
> > http://www.suite101.com/welcome.cfm/shade_gardening
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