Long-Term Effects of Spotted Knapweed Control

A research article byYvette K. Ortega and Dean E. Pearson shows that because rangeland health depends on restoring and maintaining diverse plant communities, broadleaf herbicides such as picloram should be applied selectively to spotted knapweed infestations along with management strategies designed to promote recovery of native plant communities and increase their resistance to recurring non-native plant invasions. Click here to read the full article in Rangeland Ecology and Management, 64(1):67-77. 2011.