[NAFEX] Pear leaf blister mite

Mark Angermayer hangermayer at isp.com
Thu May 21 22:10:39 EDT 2009


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" <fuwafuwausagi at muchomail.com>
To: <nafex at 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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