References
- Makepeace , W.; Thompson, A. 1982 . Ragwort control using a rope wick applicator . Proceedings of the 35th New Zealand Weed and Pest Control Conference , : 256 – 260 .
- Poole , A. L. and Cairns , D. 1940 . “ Biological aspects of ragwort (Senecio jacobaea L.) control ” . In Department of Scientific and Industrial Research bulletin no. 82 , Wellington : Government Printer .