[NAFEX] A righteous borer tool/first borers?

loneroc loneroc at mwt.net
Thu Nov 24 07:48:38 EST 2005


I had one borer in an apple once in SW WI, too. It was burroewed into the
graft union of a dwarf tree. The rootstock was either Bud 9 or P 22.  I
forget which.  I gouged out the grub and have not had another, in my apples
at least.  I've had a couple other trees that had borers in the twigs as
opposed to the base of the trunk. One was a Ptelea trifoliata, the hoptree.

Given the lack of major borer infestation here perhaps we are dealing with
another species of borer that only occasionally hits Malus.  Or perhaps in
my case, borer adults have difficulty finding my place amidst the
cornfields.

Steve Herje, Lone Rock, WI   USDA zone 3


----- Original Message ----- 
From: "Deirdre Birmingham" <deirdreb at mindspring.com>
To: "North American Fruit Explorers" <nafex at lists.ibiblio.org>
Sent: Wednesday, November 23, 2005 1:08 PM
Subject: Re: [NAFEX] A righteous borer tool/first borers?


> I am in southern WI, zone 4b, east of Mineral Point, which I should have
> added to my earlier post.
> >From the descriptions in Michael's book, I have the round-headed apple
> borer.
>
> --Deirdre
>
>
>
> > [Original Message]
> > From: tanis cuff <tanistanis at hotmail.com>
> > To: <nafex at lists.ibiblio.org>
> > Date: 11/22/2005 6:59:57 PM
> > Subject: Re: [NAFEX] A righteous borer tool/first borers?
> >
> > I haven't see this pest locally (s.WI), don't think we have it.  If the
> > borers arrive, where do they show up first?  Is there some common widl
> > susceptible tree or shrub which I should keep an eye on, or will they
> appear
> > first in apple plantings?  More likely in older trees, or young trees/
> > nursery rows?
> >
> >
> > ----Original Message Follows----
> > From: "Deirdre Birmingham" <
> > To: "North American Fruit Explorers" <>
> > Subject: Re: [NAFEX] A righteous borer tool
> > Date: Tue, 22 Nov 2005 13:10:26 -0600
> >
> > This is handy info but I cannot picture how it works, probably because I
> > don't know what the drill bit looks like. Seems it should be something
> > flexible to follow holes, n'est-ce pas?
> >   I discoverd this borer in my young trees in my nursery in October as I
> was
> > preparing them for the winter.  Just in  less than 1% of them. The few
> > affected were on mostly Bud-9 and one was on M-26.   They will get
> planted
> > out in the spring and I hope I am not transporting borers to the field
as
> > well.  There are wild apples and woods about 100 to 200 feet away.
> > What I didn't find explained well as I searched for what to do is how
> much
> > of the tree to cut out.  I used a paper clip, not having copper wire
> handy
> > as your book (previous edition) and other references indicated,  and
then
> a
> > pocket knife to cut until all affected tissue was removed.  Seemed a bit
> > drastic at times.  Is one supposed to be? I never noticed any grubs, but
> > they could have been in the mix of what I was jabbing at and then
cutting
> > out. On one tree they seemed to have already headed down into the roots.
> > I was painting tree bases for SW tree injury using latex paint.  I have
> no
> > need for Surround yet, but had on hand diatomaceous earth.  So I added
> water
> > and DE to the white latex paint.  And then painted as close to the soil
> line
> > as possible and on all sides of the tree trunk.  DE was recommended in
> your
> > new book for dogwood borer, but will it work on the round-headed
> appletree
> > borer?
> >
> > --Deirdre
> >
> >
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