Plant Invaders of Mid-Atlantic Natural Areas
Swearingen, J., K. Reshetiloff, B. Slattery, and S.
Zwicker. 2002. Plant Invaders of
Spotted knapweed, a member of the aster family, was introduced unintentionally from Eurasia as a contaminant of alfalfa and from soil used as ship ballast. It poses a threat to natural communities such as barrens, fields, meadows and forest edges because it captures moisture and nutrients, forms a deep taproot and spreads rapidly through seed. Several insect species are being used as biological control agents.
Prevention and Control
|Bargeron, C.T., D.J. Moorhead, G.K. Douce, R.C. Reardon & A.E. Miller |
(Tech. Coordinators). 2003. Invasive Plants of the Eastern U.S.:
Identification and Control. USDA Forest Service - Forest Health
Technology Enterprise Team. Morgantown, WV USA. FHTET-2003-08.