[MAIPC] spotted knapweed in the east

[Grund, Steve]

Spotted knapweed is a problematic invasive species in dry open habitats in Pennsylvania. Shale barrens, xeric limestone prairies, etc.

Steve Grund
Botanist
Natural Heritage Program, Western Pennsylvania Conservancy
800 Waterfront Drive
Pittsburgh, PA 15222
(412) 586-2350
www.paconserve.org

From: MAIPC [mailto:maipc-bounces at lists.maipc.org] On Behalf Of Hough-Goldstein, J A
Sent: Wednesday, July 01, 2015 10:29 AM
To: MA-IPC Listserve
Subject: [GRAYMAIL] [MAIPC] spotted knapweed in the east

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<mailto:jhough at udel.edu>
http://canr.udel.edu/faculty/hough-goldstein-judy/



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