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Author: Jennifer Forman Orth

Invading your brain since 2002.

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Nature Blog Network

Monday, August 23, 2004

Ragwort Retreat

The title of this article from the Corvallis Gazette-Times may be a bit premature, but the fight against tansy ragwort (Senecio jacobaea) invasion in Oregon seems to be winding down. After studying a variety of different management techniques, scientists settled on a combination of biological controls, disturbance regimes, and competition from native plants. Levels of tansy ragwort are now down to "1 to 3 percent of its former abundance" and native plant diversity in invaded areas is recovering.


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