[MAIPC] spotted knapweed in the east
Matthew Sarver
matt at matthewsarver.com
Wed Jul 1 10:20:56 PDT 2015
Judy,
It has been highly invasive in the right soil conditions in the east for
quite some time in my experience. When I was in college at Cornell in the
late 90's I worked with Bernd Blossey and we had a number of sites in the
Finger Lakes where heavy invasions followed RR rights of way on the cuts
and ballast banks. It is also invasive on roadcuts, strip mines, and other
poor soil, dry areas throughout western and central pennsylvania. I've
never seen it outcompete natives in more mesic sites, but it could have
heavy impacts on certain high wildlife value xeric habitats, e.g. shale
barrens, reclaimed strip mine sites, talus slopes, etc.
The biocontrol critter Blossey's lab was working with at the time was a
very attractive, large curculionid, *Cyphocleonus achates*.
-Matt
On Wed, Jul 1, 2015 at 12:58 PM, Stephen Hiltner <stevehiltner at gmail.com>
wrote:
> It was invasive in prairie restorations in Ann Arbor, MI. The U of M
> landscape architect dept. could be contacted, or the city's Natural Areas
> Preservation director in the parks dept., for more up to date info.
>
> I found something called Tyrol's knapweed (Centaurea nigrescens) spreading
> in a small area along the towpath in Princeton, NJ. And am seeing Daucus
> carota in some spots in NJ start to act as invasive in meadows as it was in
> Michigan.
>
> On Wed, Jul 1, 2015 at 12:29 PM, Bailey, Whitney - FS <
> whitneybailey at fs.fed.us> wrote:
>
>> It's all over WV on roadsides, dry slopes, and pastures. We are actively
>> treating it within the boundaries of the Potomac Highlands CWPMA, but as
>> far as I know only with herbicides thus far.
>>
>> Whitney Bailey
>> Forest Ecologist
>> Forest Service
>> Monongahela National Forest
>> p: 304-636-1800 x280
>> whitneybailey at fs.fed.us
>> 200 Sycamore St.
>> Elkins, WV 26241
>> www.fs.fed.us
>>
>> Caring for the land and serving people
>>
>>
>>
>> -----Original Message-----
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>> maipc-request at lists.maipc.org
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>> Subject: MAIPC Digest, Vol 45, Issue 2
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>> Today's Topics:
>>
>> 1. spotted knapweed in the east (Hough-Goldstein, J A)
>> 2. Re: spotted knapweed in the east (Swearingen, Jil)
>> 3. Re: spotted knapweed in the east (McAvoy, Tom)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Wed, 1 Jul 2015 14:29:16 +0000
>> From: "Hough-Goldstein, J A" <jhough at udel.edu>
>> To: MA-IPC Listserve <maipc at lists.maipc.org>
>> Subject: [MAIPC] spotted knapweed in the east
>> Message-ID: <5A6E273BE0233E479143BB98CBFF0F6971AA1088 at mailbox1>
>> Content-Type: text/plain; charset="utf-8"
>>
>> All,
>> I am working on adding spotted knapweed to the list of invasive plants in
>> the Mid-Atlantic that have biocontrol insects available for release, but
>> the vast majority of published work deals with infestations in western
>> rangelands. The implication seems to be that it rarely becomes invasive in
>> the east, but maybe that is changing.
>> Does anyone know of (1) infestations of knapweed in particular habitats
>> in the east or (2) any states in the eastern US that have released
>> biocontrol insects targeting this species?
>> Thanks,
>> Judy
>> ____________________________
>> Judy Hough-Goldstein, Professor
>> Dept. Entomology & Wildlife Ecology
>> University of Delaware, Newark DE 19716
>> Phone: (302) 831-2529
>> E-mail: jhough at udel.edu<mailto:jhough at udel.edu>
>> http://canr.udel.edu/faculty/hough-goldstein-judy/
>>
>>
>>
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>> ------------------------------
>>
>> Message: 2
>> Date: Wed, 1 Jul 2015 11:01:21 -0400
>> From: "Swearingen, Jil" <jil_swearingen at nps.gov>
>> To: "Hough-Goldstein, J A" <jhough at udel.edu>
>> Cc: MA-IPC Listserve <maipc at lists.maipc.org>
>> Subject: Re: [MAIPC] spotted knapweed in the east
>> Message-ID:
>> <CAF689tm=xnJNq5zKKrfBrZfF3GZAMJ3M6Q2tC3n9E_Azof=
>> gyg at mail.gmail.com>
>> Content-Type: text/plain; charset="utf-8"
>>
>> Judy,
>>
>> I'm glad we are giving this plant more attention. It is definitely an
>> invasive in natural areas in the eastern states. See the EDDMapS based map
>> of its distribution nationwide from the Invasive Plant Atlas of the United
>> States. I saw large infestations of it along I-70 and I-68 this past
>> weekend in Allegany and Washington Cos. in Maryland.
>>
>> http://www.invasiveplantatlas.org/subject.html?sub=3013
>>
>> Thank you,
>>
>> Jil
>>
>> On Wed, Jul 1, 2015 at 10:29 AM, Hough-Goldstein, J A <jhough at udel.edu>
>> wrote:
>>
>> > All,
>> >
>> > I am working on adding spotted knapweed to the list of invasive plants
>> > in the Mid-Atlantic that have biocontrol insects available for
>> > release, but the vast majority of published work deals with
>> > infestations in western rangelands. The implication seems to be that
>> > it rarely becomes invasive in the east, but maybe that is changing.
>> >
>> > Does anyone know of (1) infestations of knapweed in particular
>> > habitats in the east or (2) any states in the eastern US that have
>> > released biocontrol insects targeting this species?
>> >
>> > Thanks,
>> >
>> > Judy
>> >
>> > ____________________________
>> >
>> > Judy Hough-Goldstein, Professor
>> >
>> > Dept. Entomology & Wildlife Ecology
>> >
>> > University of Delaware, Newark DE 19716
>> >
>> > Phone: (302) 831-2529
>> >
>> > E-mail: jhough at udel.edu
>> >
>> > http://canr.udel.edu/faculty/hough-goldstein-judy/
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> > _______________________________________________
>> > MAIPC mailing list
>> > MAIPC at lists.maipc.org
>> > http://lists.maipc.org/listinfo.cgi/maipc-maipc.org
>> >
>> >
>>
>>
>> --
>> *?Jil Marie Swearingen*
>>
>> *IPM and Invasive Species CoordinatorIntegrated Pest Management Program*
>> *National Capital Region* *Natural Resources and Science*
>> *4598 MacArthur Blvd., N.W.*
>> *Washington, DC 20007*
>> *?202-339-8318*
>>
>> I
>> ?PM Resources: ?
>> ?
>> <http://www.nature.nps.gov/biology/ipm/>
>> http://www1.nrintra.nps.gov/BRMD/ipm/
>> Pesticide Use Proposal System (PUP
>> ?S):
>> ?https://irma.nps.gov/pups ?
>> Please take a moment to share your feedback <
>> http://www.surveymonkey.com/s/QPGJJJ> on the assistance I provided you.
>>
>> "
>> *Great spirits have always encountered opposition from mediocre
>> minds?.?"* Albert
>> Einstein
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>> ------------------------------
>>
>> Message: 3
>> Date: Wed, 1 Jul 2015 15:41:16 +0000
>> From: "McAvoy, Tom" <tmcavoy at vt.edu>
>> To: "Hough-Goldstein, J A" <jhough at udel.edu>, MA-IPC Listserve
>> <maipc at lists.maipc.org>
>> Subject: Re: [MAIPC] spotted knapweed in the east
>> Message-ID: <7e45b8bbd63f497683872328a3625088 at BELL.cc.w2k.vt.edu>
>> Content-Type: text/plain; charset="utf-8"
>>
>> Judy,
>> Attached is a pub on knapweed we did back in the 1980 - 90?s.
>> We haven?t worked on it since then. Still a lot of knapweed here.
>> Tom
>>
>>
>> ---------------------------------------------------------------------------------------------------------------------------
>> Tom McAvoy
>> Entomology (MC0319)
>> Price Hall, Rm 216, Virginia Tech
>> Blacksburg, VA 24061
>> Main Office: (540) 231-4010
>> Q-lab: 540-231-6320
>> FAX: 540-231-9131
>>
>> From: MAIPC [mailto:maipc-bounces at lists.maipc.org] On Behalf Of
>> Hough-Goldstein, J A
>> Sent: Wednesday, July 01, 2015 10:29 AM
>> To: MA-IPC Listserve
>> Subject: [MAIPC] spotted knapweed in the east
>>
>> All,
>> I am working on adding spotted knapweed to the list of invasive plants in
>> the Mid-Atlantic that have biocontrol insects available for release, but
>> the vast majority of published work deals with infestations in western
>> rangelands. The implication seems to be that it rarely becomes invasive in
>> the east, but maybe that is changing.
>> Does anyone know of (1) infestations of knapweed in particular habitats
>> in the east or (2) any states in the eastern US that have released
>> biocontrol insects targeting this species?
>> Thanks,
>> Judy
>> ____________________________
>> Judy Hough-Goldstein, Professor
>> Dept. Entomology & Wildlife Ecology
>> University of Delaware, Newark DE 19716
>> Phone: (302) 831-2529
>> E-mail: jhough at udel.edu<mailto:jhough at udel.edu>
>> http://canr.udel.edu/faculty/hough-goldstein-judy/
>>
>>
>>
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--
Matthew Sarver
Sarver Ecological, LLC
6 Walnut Ridge Rd
Greenville, DE 19807
724-689-5845
matt at matthewsarver.com
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