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- Name: Spotted Knapweed (Centaurea stoebe)
- Introduction: From Eurasia as a contaminant of alfalfa and clover seed
- Habitat: Any disturbed soil
- Infestation: Vacant lots, pastures, rangeland, roadsides, stream banks and landscaping
- Available Control: Mechanical, chemical, and biological
- Priority of Control: Preventing plant from going to seed, attack in rosette stage
- Biological Controls: For more information about these biological control agents of Spotted Knapweed, please visit WSU Extension Integrated Weed Control Project.
- For More Detail: Visit the Washington Noxious Weed Control Board listing for Spotted Knapweed.
