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• Otago Regional Council: Plant Pests: ragwort Provides a brief description and information on control methods.

• Environment Waikato: Plant Pests: Ragwort Provides a short description and information on control methods.

For additional advice and information on effective methods of control contact your local Regional Council Plant Pest Officer, chemical company representative, farm supply store or garden centre.

A national Biological Control Programme is maintained by Manaaki Whenua – Landcare Research.