Re: mildew et al

**Marya Williams sistermarya@juno.com>**

Actually, at least for Black Spot (not sure about mildew), you're
supposed to apply *before* every rain, since rain spreads the disease and
you want a barrier between the leaf and the fungus spores. Since it's
hard to always be there, then at least once a week, and more if it rains.
I find it a hassle and appreciate plants that are less susceptible to
disease, like many of the Austin English roses. Rugosas are supposed to
be pretty well disease free.

I don't know about the soap taking care of the insects but it might,
especially aphids if you spray right on the little nasties. 

                                                Marya

> Hi Marya,
> 
> Thanks for the advise on the mildew spots.  It does sound like that 
> is what 
> I might have on my roses. By the end of the season the leaves have 
> just 
> about all dropped off.  How long does this treatment last?  When we 
> used to 
> treat our crab apple trees it said that they had to be treated after 
> every 
> rain.  Is this the same concept for the roses?  Also, since you put 
> some 
> dishwashing liquid in the solution does this help keep the bugs off 
> the 
> plants as well?
> 
> Mary
> 
> 
> 
> >From: Marya Williams <sistermarya@juno.com>
> >Reply-To: rose-list@mallorn.com
> >To: rose-list@mallorn.com
> >Subject: Re: [Rose-list] Re: rose/crab apple rust and Japanese 
> Beetles
> >Date: Sat, 29 Sep 2001 21:23:03 -0500
> >
> >The silver spots sound like powdery mildew. You can spray baking 
> soda to
> >prevent this-- 3 Tablespoons baking soda and a teeny bit of 
> dishwashing
> >liquid (to help it stick to the leaves) to a gallon of water. It 
> will
> >also help with black spot if done regularly. Both diseases will be 
> helped
> >if the plants have plenty of sunshine and air circulation.
> >
> >I don't know which beetles you have, but I have beetles about that 
> size
> >on mine and they go in between the petals and eat holes. They are
> >greenish yellow with black spots-- the spotted cucumber beetle 
> (they
> >don't eat just cukes!). Mostly I just squash them when I find 
> them.
> >
> >                                                 Marya
> >
> >
> >
> > > I do know that these roses had some kind of mold growing on 
> them.
> > > The
> > > leaves had silver spots all over them.  But this year with the 
> trees
> > > gone
> > > now my new plants did not take at all.  I got a couple of blooms 
> on
> > > them and
> > > them they didn't bloom again.  I don't know what else could be 
> the
> > > cause?
> > >
> >
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> n.com/mailman/listinfo/rose-list
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