Re: Watering vines

i think the spores have been hiding in the gravel by the sounds of it..

Chris

----- Original Message -----
From: "Eric and Doria Toedtli" <ejtoedtli@attbi.com>
To: <pumpkins@hort.net>
Sent: Saturday, March 22, 2003 1:43 PM
Subject: Re: Watering vines


> I tried growing AG this past year for the first time and had severe
problems
> with powdery mildew.  My primary gardening interest is Dahlias.  I show
them
> in competition.  They also had powdery mildew worse then I have ever seen
in
> the past.  I asked other dahlia growers in my area if they had problems
and
> they said that they saw less powdery mildew than in the past.  This was
the
> first year in my new house and I thought that maybe it has something to do
> with being on acreage now.  One of the growers asked if I have a gravel
> driveway, which I do.  He has found that at his farm, plants closer to his
> gravel road have a much worse problem with powdery mildew than those
further
> away from the gravel.  His theory is that maybe dust can somehow stimulate
> the growth of powdery mildew.  Maybe someday I will be able to afford to
> blacktop the road.  This season I am going to start spraying for powdery
> mildew in early to mid August.  I will spray both the AG and dahlias.  The
> dust did not seems to stimulate black spot on tomatoes.  Usually it is
real
> bad in our area but I didn't see it this year until October.
>
> Eric Toedtli
> Vancouver, Wa (a suburb of Portland, Or.,  NOT Canada)
>
> ----- Original Message -----
> From: "Rebecca (Rebkin) Steward" <rebkin@pcmagic.net>
> To: <pumpkins@hort.net>
> Sent: Friday, March 21, 2003 9:54 PM
> Subject: Re: Watering vines
>
>
> Hi all-
> On the subject of powdery mildew, I've had this problem in my patch every
> year and not just the pumpkins, everything seems to have it by summers
end.
> Zucchini, bean plants, even my sunflowers and giant zinnias all in the
same
> area. I am starting  to think that the problem is A) too much shade & B)
the
> problem is in my soil -I've yet to investigate testing for this in
soil..??
> any answers?? Another question I have , is powdery mildew a virus or a
> bacteria??  Any how, I addressed this issue at the recent growers' meeting
> in Elk Grove and one So. Calif. grower, treated powdery mildew by spraying
> the plants w/ plain baking soda and water, applied in a hose-end sprayer.
> Ratio of soda to water?? "about a cup or so, mixed w/ the water", he said
it
> helped get rid of the stuff and something about this sure made his plants
> healthier than usual....so, I will give it a try this year-- But I always
> use the soaker method to water after plants are up and especially after
> flowers appear. I only over-head water seed beds until germination
> occurs,(Pumpkins are started inside in peat pots)  then in goes the
soakers.
> I hope to hear more solutions or discussions on this problem w/ the
powdery
> mildew--I'll try just about anything.  Thanks to all for your sharing of
> experience.
> Rebecca Steward
> Martinez, CA
> ----- Original Message -----
> From: "Beth Rado" <rado1000@hotmail.com>
> To: <pumpkins@hort.net>
> Sent: Friday, March 21, 2003 4:55 PM
> Subject: Re: Watering vines
>
>
> > >...and get rid of powdery mildew.  Well, it may help, but I found it
> >will
> > >not eliminate mildew- ....  You'll get it regardless of watering
> > > >technique.
> >
> > I have a note on my pumpkin calendar to spray for powdery mildew no
later
> > than August 5.  It usually starts here between August 5th & 10th, and is
> > thriving by the 15th.  Last year I used Daconil on July 29, and saw zero
> > powdery mildew for three weeks - well past the time it usually gets bad.
> > For a variety of reasons, I didn't spray again, but I believe if I had
> > sprayed regularly the p.m. could be prevented.  (Isn't that what
Pumkinguy
> > always said??)
> >
> > You have to remember to shake the Daconil way more than most products
> > (thanks, Dale!) and most importantly, spray BEFORE you see the mildew.
> Once
> > it starts, you will never get ahead of it.
> >
> > Beth
> >
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