[MAIPC] Annual Update on Japanese stilt grass

Sun May 16 16:56:23 PDT 2021

Annual Update  on Japanese stilt grass

Every year at this time we are so stressed out about  Japanese stilt grass that we have discussions about where do we go from here. 

1.	As I removed wineberry, garlic mustard Japanese honeysuckle, oriental bittersweet, MFR, and mock strawberry in big patches of Japanese stilt grass today, I reminded myself that if the stilt grass gets wiped out by a bio control, these invasives will not be there to replace it. Only the natives I saved.
2.	We will continue to look for places that Bipolaris microstegii  made a big impact the following year. 
3.	(wild idea) Someone who does not like spraying a lot of herbicide suggested that we spray Bipolaris microstegii instead.
4.	We can continue to look for native host species of Bipolaris microstegii. Native Deer tongue grass was tried but did not host it. 
5.	What else everyone?

Marc Imlay

From: Marc Imlay <ialm at erols.com> 
Sent: Saturday, May 01, 2021 10:45 PM
To: 'Judith Hough-Goldstein' <jhough at udel.edu>
Cc: 'Andreas, Jennifer E' <jandreas at wsu.edu>; 'Belle Bergner' <bbergner at naisma.org>; 'Carrie Jean Brown-Lima' <cjb37 at cornell.edu>; 'Jil Swearingen' <jilswearingen at gmail.com>
Subject: RE: biocontrol for Japanese stilt grass

From: ForestRuss at aol.com <mailto:ForestRuss at aol.com>  <ForestRuss at aol.com <mailto:ForestRuss at aol.com> > 
Sent: Friday, January 24, 2014 9:48 AM
To: ialm at erols.com <mailto:ialm at erols.com> 
Subject: Re: [APWG] FW: Japanese Stiltgrass update

Marc:

I've been working with Luke Flory on the Bipolaris fungus for the past couple years and have been studying how the disease is impacting Mv since 2009 when I first started seeing sick stiltgrass in central WV.

The disease is having a dramatic impact on seed production and in some older invasions the stitlgrass has completely  died out with no stiltgrass left.

Good to see the disease is spreading.

Sincerely,

Russ Richardson, CF

Arnoldsburg, WV

From: Maipc-brd <maipc-brd-bounces at lists.maipc.org <mailto:maipc-brd-bounces at lists.maipc.org> > On Behalf Of Imlay, Marc
Sent: Thursday, December 27, 2018 2:27 PM
To: Jil Swearingen <jilswearingen at gmail.com <mailto:jilswearingen at gmail.com> >; Flory, S. Luke <flory at ufl.edu <mailto:flory at ufl.edu> >
Cc: MAIPC Board <maipc-brd at lists.maipc.org <mailto:maipc-brd at lists.maipc.org> >; Judy Fulton <jfulton5 at gmail.com <mailto:jfulton5 at gmail.com> >; Bruckart, William (William.Bruckart at ARS.USDA.GOV <mailto:William.Bruckart at ARS.USDA.GOV> ) <William.Bruckart at ARS.USDA.GOV <mailto:William.Bruckart at ARS.USDA.GOV> >; Rod Simmons <Rod.Simmons at alexandriava.gov <mailto:Rod.Simmons at alexandriava.gov> >
Subject: Re: [Maipc-brd] [APWG] Microstegium disease? Possible biocontrol noted

The problem is that the success in 2009 has happened many times in many places in many states, but is never replicated the following year. What is desperately needed is observations on site of the other species of plants, fungus, or animals that may be why it works the first time. I had a mono-culture about 1/20 acre of stilt grass that died after flowering but before seeding in Ruth B. Swann Park in Charles County MD about 9 years ago. But nothing happened the following years at that site. I wish I had surveyed for other species at the site that may have partnered with the Bipolaris microstegii. Marc

Marc Imlay, PhD, Chair, Biological Control Working Group 

Conservation Biologist, Park Ranger Office, Non-native Invasive Plant Control Coordinator. 

Cell: (301) 442-5657, ialm at erols.com

Natural and Historical Resources Division

The Maryland-National Capital Park and Planning Commission

www.pgparks.com

From: Bruckart, William < <mailto:William.Bruckart at ARS.USDA.GOV> William.Bruckart at ARS.USDA.GOV> 
Sent: Thursday, October 22, 2015 11:40 AM
To:  <mailto:ialm at erols.com> ialm at erols.com; 'Hough-Goldstein, J A' < <mailto:jhough at udel.edu> jhough at udel.edu>
Subject: RE: host for bio controls of mivcrostegium off season

Correct, Marc.  These rust fungi would overwinter as telia on U.S. Microstegium, if it’s susceptible.  We are assuming plants from each region are the same.  We are also learning about extremes of variability in susceptibility within U.S. populations to Bipolaris microstegii, so there might be need to develop this understanding about Microstegium vimineum for the rust diseases (and insects?).  Details to follow, hopefully.  Cheers!

William L. Bruckart, III

USDA, ARS, FDWSRU

1301 Ditto Ave.

Ft. Detrick, MD 21702

  Phone: 301/619-2846

  Email:  <mailto:william.bruckart at ars.usda.gov> william.bruckart at ars.usda.gov

From: Marc Imlay [ <mailto:ialm at erols.com> mailto:ialm at erols.com] 
Sent: Thursday, October 22, 2015 11:32 AM
To: Bruckart, William; 'Hough-Goldstein, J A'
Subject: RE: host for bio controls of mivcrostegium off season

So if a species of Puccinia in Asia is verified to be host specific on Microstegium it would be host specific on Japanese Stilt grass in America since this is the only species in the genus Microstegium in America as I understand it. And nothing else would need to be brought over to support it in the Winter time. 

Marc

From: Marc Imlay <ialm at erols.com <mailto:ialm at erols.com> > 
Sent: Thursday, April 29, 2021 5:02 AM
To: 'Carrie Jean Brown-Lima' <cjb37 at cornell.edu <mailto:cjb37 at cornell.edu> >; jilswearingen at gmail.com <mailto:jilswearingen at gmail.com> 
Cc: 'Belle Bergner ' <bbergner at naisma.org <mailto:bbergner at naisma.org> >; Andreas, Jennifer E <jandreas at wsu.edu <mailto:jandreas at wsu.edu> >
Subject: RE: biocontrol for Japanese stilt grass

The research team was testing the potential impact of the candidate fungal biocontrol in Maryland on endangered species. They told us that it looked extremely promising. It was evidently not submitted to the TAG for review. How can we request that the research be updated? Marc 

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