SPRAY NOTIFICATION: Garden Loosestrife, Initial Applications July 26 through August 9

August 4th, 2011 by UWBG Horticulturist

UW Botanic Gardens has begun its 5th and final year of the 5yr Dept. of Ecology, Garden Loostrife eradication project.

 Our contractor, NW Aquatic Eco-Systems, has scheduled initial  spray applications to commence on July 26 and continue through first week of August.  Postings of project and current spray dates are located at all public accessible waterfront locations.  There will be a final follow-up application in September.

Lysimachia vulgaris, Garden Loosestrife, a non-native wetland species is invasive in this area. State listed as a class B noxious weed, it requires control by the land manager UW Botanic Gardens as mandated by King County Noxious Weed Control Board.

 

 

Treatment includes: 

  •  Approximately 5 miles of shoreline property bordering Union Bay including Foster and Marsh Islands in the Washington Park Arboretum
  • An initial and follow up spray application to occur between July 15 and October 1
  •  Both shoreline and land side application of the herbicide Habitat (imazapyr), a selective broadleaf herbicide. 
    •  Non toxic to fish and their food web.
    •  No significant risk to birds or mammals

                                  

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Call for Abstracts: Conserving Plant Biodiversity

August 4th, 2011 by Wendy Gibble
 arctic alpine forget-me-not

Arctic alpine forget-me-not, Ertrichiumnanumvar elongatum

The University of Washington Botanic Gardens will be hosting a conference next March, on Conserving Plant Biodiversity in a Changing World: A View from NW North America. Complete  information is on the conference website, including program themes, sponsorship opportunities and a call for entries for a botanical art competition.

The call for abstracts will be open until October 28th.

Note that we define change as not just climate, but also economic and political change.

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