North American Fruit Explorers mailing list at ibiblio

["Mark Angermayer" <hangermayer@isp.com>]

I believe I read to treat it that way in one of the trades.  Scaffolds, MSUs
newsletter, FGN?  I can't remember which one..

One thing to mention is that oil supposedly makes trees more susceptible to
winter kill, if sprayed in the fall.  We don't generally get very low winter
minimums here, but that might be a consideration for folks farther north.
One spray before bud break in the spring might do just as good as a fall and
spring spraying, I dunno.  You could ask USDA pear breeder Richard Bell, who
also helped with a positive I.D. in my case.  It looked like he had a post
on this list a few weeks back.

Mark
KS

----- Original Message ----- 
From: "Anton Callaway" <>
To: "North American Fruit Explorers" <nafex@lists.ibiblio.org>
Sent: Saturday, May 23, 2009 6:36 PM
Subject: Re: [NAFEX] Pear leaf blister mite


> What's the reasoning behind the spray at 50% leaf drop?
> Anton
>
> -----Original Message-----
> >From: Mark Angermayer <>
> >Sent: May 21, 2009 10:10 PM
> >To: fuwafuwausagi@muchomail.com, North American Fruit Explorers
<nafex@lists.ibiblio.org>
> >Subject: Re: [NAFEX] Pear leaf blister mite
> >
> >I had pear blister mite for several years and never knew what it was.  Ed
> >Fackler helped me figure it out.  It only attacked some pears, even
though
> >they are all in the same row.  I did an oil  spray last fall at 50% leaf
> >drop, then again before bud break.  It pretty much eliminated it this
> >season.
> >
> >Mark
> >KS
> >----- Original Message ----- 
> >From: "fuwa fuwa usagi" <>
> >To: <nafex@lists.ibiblio.org>
> >Sent: Thursday, May 21, 2009 8:47 PM
> >Subject: [NAFEX] Pear leaf blister mite
> >
> >
> >> Okay so I have something that looks like pear leaf blister mite damage,
> >reference:
> >>
> >>
http://oregonstate.edu/dept/nurspest/pear_leaf_blister_mite%20closeup2.htm
> >>
> >> Here is the thing I find odd.  It only occurs on the same tree every
year
> >(Harvest Queen) which is next to Harrow Sweet which suffers no damage nor
do
> >the other pear trees in the area.  Year after year it is only this tree
that
> >suffers. More - there is one branch of Warren grafted to this tree and it
> >never suffers damage.  Any thoughts?
> >>
> >> Curious,
> >>
> >> the fluffy one
> >>
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