CAWS recognises outstanding contributions to weed management in Australasia through the award of the CAWS Medal for Leadership. This is a prestigious award with, on average, no more than two medals being awarded at each Australasian Weeds Conference.
The WSWA has successfully nominated the following individuals for outstanding contribution to weed science in Western Australia. To nominate a individual, contact the WSWA.
| Year | Recipient |
| 2016 | Dr John Scott |
| 2014 | Rod Randall |
| 2006 | Dr Chris Preston |
| 2005 | John Pierce |
| 2002 | John Moore |
| 1997 | Prof. Marcus Blacklow |
| 1990 | Des Gilbey |