[MAIPC] spotted knapweed in the east

[Cheryl Joy Lipton]

Spotted knapweed is one of the invasives at Stone Quarry Hill Art Park in Cazenovia, New York. I've found it in meadows of Syracuse and the surrounding areas in upstate New York.
 Cheryl Joy LiptonEcology, Landscape Architecture

big changes aren't made by large gestures alone - they are made in the little things all of us do every day.
Green Living - Inside and Out
610-631-5459

      From: "Hough-Goldstein, J A" <jhough at udel.edu>
 To: MA-IPC Listserve <maipc at lists.maipc.org> 
 Sent: Wednesday, July 1, 2015 10:29 AM
 Subject: [MAIPC] spotted knapweed in the east
   
 <!--#yiv6771017784 _filtered #yiv6771017784 {font-family:"Cambria Math";panose-1:2 4 5 3 5 4 6 3 2 4;} _filtered #yiv6771017784 {font-family:Calibri;panose-1:2 15 5 2 2 2 4 3 2 4;}#yiv6771017784 #yiv6771017784 p.yiv6771017784MsoNormal, #yiv6771017784 li.yiv6771017784MsoNormal, #yiv6771017784 div.yiv6771017784MsoNormal {margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:"Times New Roman", "serif";}#yiv6771017784 a:link, #yiv6771017784 span.yiv6771017784MsoHyperlink {color:blue;text-decoration:underline;}#yiv6771017784 a:visited, #yiv6771017784 span.yiv6771017784MsoHyperlinkFollowed {color:purple;text-decoration:underline;}#yiv6771017784 span.yiv6771017784EmailStyle17 {font-family:"Calibri", "sans-serif";color:#1F497D;}#yiv6771017784 .yiv6771017784MsoChpDefault {font-size:10.0pt;} _filtered #yiv6771017784 {margin:1.0in 1.0in 1.0in 1.0in;}#yiv6771017784 div.yiv6771017784WordSection1 {}-->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/            
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