[MAIPC] Fwd: Microstegium cutting

Wed Aug 29 15:58:07 PDT 2018

The seed bank for jsg is 5 years. This works for a patch unless new seeds move in from elsewhere. Marc

Marc Imlay, PhD, Chair, MAIPC Biological control working Group,  MD Chapter Sierra Club Natural Places Chair. 

Conservation biologist, Park Ranger Office, Non-native Invasive Plant Control coordinator. 
(301) 442-5657 cell   <mailto:ialm at erols.com> ialm at erols.com
Natural and Historical Resources Division
The  Maryland-National   Capital   Park  and Planning Commission
 <http://www.pgparks.com/> www.pgparks.com  

From: MAIPC [mailto:maipc-bounces at lists.maipc.org] On Behalf Of Sara Webb
Sent: Wednesday, August 29, 2018 1:12 PM
To: Jil Swearingen <jilswearingen at gmail.com>
Cc: MAIPC Listserve <maipc at lists.maipc.org>
Subject: Re: [MAIPC] Fwd: Microstegium cutting

Wow! I didn't know about cleistogamous flowers in stilt grass.  Are they ever below ground? How high on the stalk?   Are they visually different from the ch flowers?  (anyone have a picture?)  And while we're on the subject: does anyone know how long stilt grass seeds remain viable in the seed bank?  This plant is a major challenge to restoration of the Drew U Forest Preserve here in NJ.  

Thanks,

Sara Webb

On Tue, Aug 28, 2018 at 1:09 PM, Jil Swearingen <jilswearingen at gmail.com <mailto:jilswearingen at gmail.com> > wrote:

---------- Forwarded message ---------
From: Jil Swearingen <jilswearingen at gmail.com <mailto:jilswearingen at gmail.com> >
Date: Tue, Aug 28, 2018 at 12:46 PM
Subject: Fwd: [MAIPC] Microstegium cutting
To: MAIPC Listserve <maipc at lists.maipc.org <mailto:maipc at lists.maipc.org> >

All,

I contacted Dr Luke Flory for his input. Please see his message below

.

. I was curious about the timing of cutting with respect to the hidden or cleistogamous ("CL") flowers and seeds.

Thank you,

Jil

.......................

Jil Swearingen

Invasive Species Consultant

In the Weeds

410-200-7085

---------- Forwarded message ---------
From: Flory, S. Luke <flory at ufl.edu <mailto:flory at ufl.edu> >
Date: Tue, Aug 28, 2018 at 11:46 AM
Subject: Re: [MAIPC] Microstegium cutting
To: Jil Swearingen <jilswearingen at gmail.com <mailto:jilswearingen at gmail.com> >

Hi Jil,

Mowing is tough because it often isn’t low enough to catch all/most of the CL seeds, which can be produced low to the ground. More effective is string trimming very close to the ground, but of course then you hammer the native species. Even better is a grass-specific herbicide, which can exclude Mv and allow most native species to return. If mowing is the only option, mowing year after year after about Aug 15 or once flowering starts, can be helpful in reducing seed production and spread. CL seeds ripen later than CH seeds, usually in mid to late October in the PA latitude.

Attached here are a bunch of papers, but there are quite a few others. Let me know if you are interested in anything in particular that isn’t included here (complete list on my web site).

Luke

____________________________________

S. Luke Flory

Associate Professor

University of Florida

352-231-2376 (mobile)

352-294-1581 (office)

florylab.com <http://florylab.com> 

@lflory

From: Jil Swearingen <jilswearingen at gmail.com <mailto:jilswearingen at gmail.com> >
Date: Tuesday, August 28, 2018 at 8:59 AM
To: S Luke Flory <flory at ufl.edu <mailto:flory at ufl.edu> >
Subject: Fwd: [MAIPC] Microstegium cutting

Hello Dr. Flory (Luke),

I wondered if you would be interested in weighing in on this question about when to mow microstegium when it's mixed with native species. I was also curious about the viability of the cleistogamous fruits. When do they ripen, are they viable and should that be considered when doing management? 

Do I need to contact you for each individual publication you have on this plant or could I get access to all of your stiltgrass papers?

Thanks very much,

Jil

.......................

Jil Swearingen

Invasive Species Consultant

In the Weeds

410-200-7085

---------- Forwarded message ---------
From: Muth, Norris (MUTH) <MUTH at juniata.edu <mailto:MUTH at juniata.edu> >
Date: Mon, Aug 27, 2018 at 9:07 AM
Subject: [MAIPC] Microstegium cutting
To: MAIPC Listserve <maipc at lists.maipc.org <mailto:maipc at lists.maipc.org> >

Hi all,

I know this info exists in several places – but I thought I’d exercise your collective brains. 

I’m looking for a quick reminder on the optimal height at which to cut Microstegium. I know timing is also important – but the person who asked me is looking to do it ASAP (i.e. their cutting time is fixed to lat August). Mostly the concern is – could you easily leave it too tall? 

Thanks!

—

Norris Z. Muth, Ph.D. 

Associate Professor, Biology

Office: 814-641-3632 | 1054 VLB

Juniata College

1700 Moore Street 

Huntingdon, PA 16652

muthlab.org <https://urldefense.proofpoint.com/v2/url?u=http-3A__muthlab.org&d=DwMFaQ&c=pZJPUDQ3SB9JplYbifm4nt2lEVG5pWx2KikqINpWlZM&r=fES_yIbo2XNO_A-tekUXow&m=AyeeUKMmTVCoc6OLLqZzE_-alKEY43CXMxOg_pGpips&s=eYru_PRlzeOWEceBhdUva3PtaQgICik92f3XXURixcM&e=>  |  <https://urldefense.proofpoint.com/v2/url?u=http-3A__NativePlantAdvocate.org&d=DwMFaQ&c=pZJPUDQ3SB9JplYbifm4nt2lEVG5pWx2KikqINpWlZM&r=fES_yIbo2XNO_A-tekUXow&m=AyeeUKMmTVCoc6OLLqZzE_-alKEY43CXMxOg_pGpips&s=Q88oMI_F0TGuaOr8kiZxJOxQgBcPXFH8GF51tdxAXY4&e=> NativePlantAdvocate.org

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-- 

 <http://www.drew.edu/> 

Sara Webb 
Professor Emeritus
Biology and Environmental Studies
Drew University | Biology Department | 36 Madison Ave | Madison, NJ 07940
swebb at drew.edu <mailto:swebb at drew.edu>   

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