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Re: Heritage River Birch Pests


No on the hort oil.  I found this interesting bit on the web
http://entweb.clemson.edu/cuentres/eiis/pdfs/TO17.PDF   I didn't know that
aphids ever had and alternate host.

Once the plant matures a bit, the problem seems to go away, at least it did
for me. I'm sure it helped that I encouraged the good guys (ladybugs and
such)


d


----- Original Message ----- 
From: "A A HODGES" <hodgesaa@earthlink.net>
To: <gardenchat@hort.net>
Sent: Tuesday, July 05, 2005 7:55 PM
Subject: Re: [CHAT] Heritage River Birch Pests


> Yes, I've seen several on the tree. I always thought they looked like tiny
> alligators, except the color. I had these things last year too. Should I
> attempt to spray this winter you think?
>
>
> Andrea H
> Beaufort, SC
>
>
> > [Original Message]
> > From: Daryl <pulis@mindspring.com>
> > To: <gardenchat@hort.net>
> > Date: 7/5/2005 8:06:12 AM
> > Subject: Re: [CHAT] Heritage River Birch Pests
> >
> > Some stages of Aphids have wings, and Aphids and sawflies seem to be the
> > major pests of birches around here, along with a few weeks of Japanese
> > Beetles.  In most cases, the infestations are self-limiting.
> >
> > Do you know what baby ladybugs look like? If you've got ladybugs,
they'll
> > probably take care of the aphids for you.
> >
> > d
> >
> >
> > ----- Original Message ----- 
> > From: "A A HODGES" <hodgesaa@earthlink.net>
> > To: "gardenchat" <gardenchat@hort.net>
> > Sent: Monday, July 04, 2005 6:34 PM
> > Subject: [CHAT] Heritage River Birch Pests
> >
> >
> > > Anyone ever had a problem with pests on a River Birch? This is Betula
> > > Nigra 'Heritage.' This year, and last I had major problems with what
> > > something that has wings, is tiny and is a piercing, sucking insect.
> > > Truthfully, they look like aphids with wings to me. I've tried
blasting
> > > them, and the tree also has quite a few ladybugs, but they are really
a
> > > serious problem. My tree probably has half the leaves it should.
> > >
> > >
> > > There also seem to be some kind of beetles that look like a vegetable
> > pest, maybe potato or cucumber beetles.
> > >
> > > What do I do? The tree was planted at the back of the house in a very
> > > wet area, near where I do my repotting, etc. It's about 15 feet tall
> > > now, and is growing rapidly, but probably not a rapidly as it should.
I
> > > planted it to create summer shade which is desperately needed at the
> > > back.
> > >
> > >
> > > Should I wait until this winter and then get on a ladder and blast it
> > > with hort oil? I've never tried to systemically poison a tree before.
> > >
> > > Suggestions?
> > >
> > >
> > > Andrea H
> > > Beaufort, SC
> >
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