(PhysOrg.com) -- What do you do when a weed fights back? Noogoora burr in Australia’s tropical north has done just that but CSIRO scientists aren’t letting it get away with it.

FOR all the middle-distance wins by Borehole and Maling in the past 12 months, trainer David Lawlor rated yesterday's return to form by Noogoora Burr at Doomben as his best.

FOR all the middle-distance wins by Borehole and Maling in the past 12 months, trainer David Lawlor rated yesterday's return to form by Noogoora Burr at Doomben as his best.