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Using Plants to Control Common Buckthorn

Management of common buckthorn is often ineffective since buckthorn rapidly re-establishes from seeds and re-sprouts. At experimental buckthorn removal sites around Minnesota, USA, the Cover It Up! project has found that re-establishing dense native revegetation can limit invasion by buckthorn and other exotic plants by exerting strong competition for light and augmenting fuel loads for prescribed burns. Now in its eighth year, the project continues to yield new insights into the establishment rate and invasion-suppression capacity of native plants, especially in forests with denser tree canopies where herb growth has been slowest. This talk by Dr. Michael Schuster will focus on the diversity of revegetation approaches examined and comparing the outcomes of those different approaches.