Spotted Knapweed is a serious threat in the western plain states like Montana, Wyoming and the Dakotas. Here is a link to a paper put out by North Dakota, which has some suggestions for control; "http://www.nd.gov/ndda/files/resource/SPOTTEDKNAPWEED.pdf"; The landowner would be wise to get it under control as early as possible. Mowing or burning, then an application of reccomended herbacide is what I gathered to be the best method. In Dakota, the law requires land owners to erradicate Spotted Knapweed because it spreads quickly and completely overtakes native plant communities. The plant is actually capable of chemical warfare with other plants underground. Left unchecked, it will cause errosion issues, leave no livestock grazing grasses, or native habitat for wildlife including for grassland birds to nest. Bill Krouse Suamico, Brown County, WI Be a Wild One and landscape with native plants! "http://wildonesgreenbay.blogspot.com/"; Attract Bluebirds with BRAW. "http://www.braw.org/"; Be a Friend of Whitefish Dunes State Park. "http://www.friendsofwhitefishdunes.org/"; Ask me how to adopt a Greyhound! "http://retiredgreyhoundathletes.org/ or http://www.gpawisconsin.org/"; ---- Brian Doverspike <briandoverspike@xxxxxxxxxxx> wrote: ============= A little off topic but bird related anyway. I run a Bluebird trail on land owned by a local company. The plant manager has expressed interest, much to my delight, in working on curbing the rampant Spotted Knapweed on the property. He is looking for help with ideas for removal. Any help with best methods for removal, best time for removal and how often repeat measures would be needed would be much appreciated. Unfortunately there are acres and acres of this invasive plant so hand pulling is not an option. Thanks. Brian Doverspike and Becky Anderson Pardeeville, Columbia County #################### You received this email because you are subscribed to the Wisconsin Birding Network (Wisbirdn). To UNSUBSCRIBE or SUBSCRIBE, use the Wisbirdn web interface at: //www.freelists.org/list/wisbirdn To set DIGEST or VACATION modes, use the Wisbirdn web interface at: //www.freelists.org/list/wisbirdn Visit Wisbirdn ARCHIVES at: //www.freelists.org/archives/wisbirdn #################### You received this email because you are subscribed to the Wisconsin Birding Network (Wisbirdn). To UNSUBSCRIBE or SUBSCRIBE, use the Wisbirdn web interface at: //www.freelists.org/list/wisbirdn To set DIGEST or VACATION modes, use the Wisbirdn web interface at: //www.freelists.org/list/wisbirdn Visit Wisbirdn ARCHIVES at: //www.freelists.org/archives/wisbirdn