[MAIPC] spotted knapweed in the east

[Lane Heimer]

It has been in Garrett / Allegany Co for more than 30 years but populations
have expanded.
The populations have been moving east into Washington county in the last 10
years and is well established on roadsides.
It has reached Frederick county as well.

On Wed, Jul 1, 2015 at 10:29 AM, Hough-Goldstein, J A <jhough at udel.edu>
wrote:

>  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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>
>


-- 
Lane Heimer
Weed Control Specialist
Maryland Department of Agriculture
50 Harry S Truman Pkwy.
Annapolis, MD 21401

301-667-9376 Cell
410-841-5920 Office
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