[MAIPC] MAIPC Digest, Vol 103, Issue 11

rodswalker at aol.com rodswalker at aol.com
Wed May 27 16:27:35 PDT 2020 

I rescued a heavily infested 18 inch DBH hemlock in my yard by treating it with Core-Tect marbles inserted in the soil (three per inch of DBH).  It was clearly dying and 3 years later is now the picture of health.  I will have to treat it again in a year or two.


-----Original Message-----
To: maipc at lists.maipc.org
Sent: Wed, May 27, 2020 9:34 am
Subject: MAIPC Digest, Vol 103, Issue 11

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Today's Topics:

  1. Re: woolly adelgid (phytodoer at aol.com)
  2. Re: woolly adelgid (Tom McAvoy)
  3. Re: woolly adelgid (Earl "Bud" Reaves Jr.)


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Message: 1
Date: Tue, 26 May 2020 20:51:05 +0000 (UTC)
From: phytodoer at aol.com
To: toni at gracefullygreen.com, maipc at lists.maipc.org
Subject: Re: [MAIPC] woolly adelgid
Message-ID: <331923717.72266.1590526265142 at mail.yahoo.com>
Content-Type: text/plain; charset="utf-8"

Toni,there is no reason to think HWA has disappeared. It is probably lower in numbers since there are fewer hemlocks around - but why provide bait?
Faith Cambpell
In a message dated 5/26/2020 3:19:58 PM Eastern Standard Time, toni at gracefullygreen.com writes:

Hi Everyone:
Recently a landscape designer told me that she has been using hemlocks for awhile now without problems.? This makes me wonder if the woolly adelgid is less of a threat these days?? I have reluctantly avoided installing hemlocks, but would love to, if they had a chance of success.? Any updates on the status of this problem?
Thanks for your help.
Toni BaileyGracefully Green, LLCSustainable Landscape SpecialistsSilver Spring, Maryland ? 20910voice:? 301-279-0234fax:???? 301-279-0134www.gracefullygreen.com


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Message: 2
Date: Tue, 26 May 2020 19:08:23 -0400
From: Tom McAvoy <tmcavoy at vt.edu>
To: phytodoer at aol.com
Cc: toni at gracefullygreen.com, maipc at lists.maipc.org
Subject: Re: [MAIPC] woolly adelgid
Message-ID:
    <CAG5vgKHu-X3o39hXog-QHrPV=ijn+ffykF=4x6PEFgnajJCQeA at mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

Hemlock woolly adelgids are doing well in southwest Virginia with no long
term declines noticed. They go through cycles of ups and downs depending on
winter mortality and exsessive wet or dry periods. Unfortunately they are
not going away.
Tom

On Tue, May 26, 2020, 4:51 PM <phytodoer at aol.com> wrote:

> Toni,
> there is no reason to think HWA has disappeared. It is probably lower in
> numbers since there are fewer hemlocks around - but why provide bait?
>
> Faith Cambpell
>
> In a message dated 5/26/2020 3:19:58 PM Eastern Standard Time,
> toni at gracefullygreen.com writes:
>
> Hi Everyone:
>
> Recently a landscape designer told me that she has been using hemlocks for
> awhile now without problems.  This makes me wonder if the woolly adelgid is
> less of a threat these days?  I have reluctantly avoided installing
> hemlocks, but would love to, if they had a chance of success.  Any updates
> on the status of this problem?
>
> Thanks for your help.
>
> Toni Bailey
> *Gracefully Green, LLC*
> Sustainable Landscape Specialists
> Silver Spring, Maryland  20910
> voice:  301-279-0234
> fax:    301-279-0134
> www.gracefullygreen.com
>
>
>
> _______________________________________________
> MAIPC mailing list
> MAIPC at lists.maipc.org
> http://lists.maipc.org/listinfo.cgi/maipc-maipc.org
>
> _______________________________________________
> MAIPC mailing list
> MAIPC at lists.maipc.org
> http://lists.maipc.org/listinfo.cgi/maipc-maipc.org
>
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Message: 3
Date: Wed, 27 May 2020 09:26:42 -0400
From: "Earl \"Bud\" Reaves Jr." <ipreav00 at aacounty.org>
To: Donna Ford-Werntz <dford2 at wvu.edu>
Cc: "maipc at lists.maipc.org" <maipc at lists.maipc.org>, Toni Bailey
    <toni at gracefullygreen.com>
Subject: Re: [MAIPC] woolly adelgid
Message-ID:
    <CAC+Wfc-TSsdsr-+mhSATyzrfMXxqO=66aN_oJFSRKKHY12ir0Q at mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

HWA is treatable with systemic insecticides and if you use the right
chemical like dinotefuran, can get several years of protection. Hemlocks
also get the elongated hemlock scale  which can be just as troublesome.  I
say you can plant hemlocks but be prepared to treat them regularly.

*Earl "Bud" Reaves, CF*
*County Forester*
SAF Certified Forester #14353, MD Licensed Forester #336,
ISA Certified Arborist?\Municipal Specialist?  MA-4943AM

2664 Riva Road    MS #6201
Annapolis, Maryland 21401
*410.222.6707*
Anne Arundel Weed Resistance <https://www.anne-arundel-weed-resistance.org/>

Maryland Invasive Species Council <http://www.mdinvasivesp.org/index.html>
*Emerald Ash Borer Info
<http://www.emeraldashborer.info/index.cfm#sthash.YlSBwhCI.dpbs>*






On Tue, May 26, 2020 at 3:26 PM Donna Ford-Werntz <dford2 at wvu.edu> wrote:

> Toni, Landscape trees in my area are noticeably heavily infested this year.
> We treated 20 trees on our property 7 years ago--it lasted until last year.
>
> Donna Ford-Werntz, Ph.D.
> Service Professor/Herbarium Curator
> Biology Dept., Box 6057
> Life Sci. Bldg., 53 Campus Dr.
> West Virginia Univ.
> Morgantown, WV 26506
> 304-293-0794; biology.wvu.edu
> ------------------------------
> *From:* MAIPC <maipc-bounces at lists.maipc.org> on behalf of Toni Bailey <
> toni at gracefullygreen.com>
> *Sent:* Tuesday, May 26, 2020 3:19 PM
> *To:* maipc at lists.maipc.org <maipc at lists.maipc.org>
> *Subject:* [MAIPC] woolly adelgid
>
> Hi Everyone:
> Recently a landscape designer told me that she has been using hemlocks for
> awhile now without problems.  This makes me wonder if the woolly adelgid is
> less of a threat these days?  I have reluctantly avoided installing
> hemlocks, but would love to, if they had a chance of success.  Any updates
> on the status of this problem?
> Thanks for your help.
> Toni Bailey
> *Gracefully Green, LLC*
> Sustainable Landscape Specialists
> Silver Spring, Maryland  20910
> voice:  301-279-0234
> fax:    301-279-0134
> www.gracefullygreen.com
>
>
> _______________________________________________
> MAIPC mailing list
> MAIPC at lists.maipc.org
> http://lists.maipc.org/listinfo.cgi/maipc-maipc.org
>
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