[MAIPC] Stiltgrass control

[Bruce Barbour]

Marc,
I notice you did mention herbicides. Research has shown effectiveness of 
crabgrass pre-emergent herbicides on stiltgrass and, if the site 
warrants it, you can also kill stiltgrass with post emergent selective 
grass herbicides such as Poast and Fusilaide. Of course, depending on 
your state law and the material selected there may be a requirement to 
have the application done by a certified pesticide applicator.
Bruce

==================================================
  Bruce Barbour                             Voice: 908-475-6505
  Ag & Resource Management Agent                 Fax: 908-475-6514
  Rutgers Cooperative Extension             Mobile: 908-309-7660
  RCE of Warren County
  165 Route 519 South
  Belvidere, N.J. 07823-1949   Internet: Barbour at Aesop.Rutgers.Edu
=====================================================
Learn more about the Rutgers Environmental Stewards at
http://envirostewards.rutgers.edu/

On 9/4/2013 8:00 AM, Marc Imlay wrote:
> *How is Japanese Stiltgrass control going on in your park? *
> **
> *This year I have had the ability to only remove all the Japanese 
> Stiltgrass over 150 acres at the 200 acre Ruth B. Swann Park in 
> Charles county, MD. We**have removed all the stiltgrass every year 
> since 2004. It should be gone since the seed bank is supposed to be 
> only 5 years. When I removed all the stiltgrass in the 200 acre Swann 
> Park in the last decade stiltgrass was gone by the 5th year and almost 
> gone by the 4th year.*
> **
> *So what has changed? Climate change is one answer. For the past few 
> years in an open area at Swann Park I would remove all the stilt gras 
> and beefsteak plant in July and come back in late August to remove 
> late emergents. The amount of work in August was only 10% of the 
> amount of work in July. Now it is an equal amount. In fact, I had to 
> remove beefsteak plant 3 times to be sure I got late emergents. *
> **
> *Other explanations include deer movement and movement of stiltgrass 
> down streams. 90 % of the massive new populations that have sudenly 
> apppeared at Swann Park are not near streams and not where people use 
> the park. Deer may be more effective in bringing in stiltgrass since 
> the areas contiguous with Swann Park are now covered with stiltgrass 
> so it is easier to come in. So stiltgrass is probably moving in by 
> deer and water from abundant sources from outside of the park. *
> **
> *In conclusion, we have three choices. We can apply for a large 
> crew to join us to control stiltgrass.***
> **
> *Or we can give up. *
> **
> *For a third choice please look for stiltgrass dying from leaf blight. 
> My major concern about waiting for the leaf blight bio-control to 
> become available years from now is stiltgrass moving in to the massive 
> pristine areas of the 200 acre park. **I found one such patch, about 
> 10' x 20' in early September last year in the middle of Swann Park. I 
> left the contiguous stiltgrass untreated slightly down the hill for 
> about 20' and will check it out next week. If you find such a patch 
> there are researchers that may be interested in looking at the patch. *
>
> *Marc Imlay, PhD
> Chair of the Biodiversity and Habitat Stewardship Committee for the 
> Maryland Chapter of the Sierra Club.
> *
>
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>
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