Greg completed the Master of Environment at the University of Melbourne in 2014, under the supervision of Libby Rumpff. Greg applied Structured Decision Making to management of the invasive plant English broom Cytisus scoparius in the Lake Dartmouth area of Victoria. A Bayesian Belief Network was built to aid decision-making by predicting the consequences of different management actions over 5-year and 20-year time-frames. In the absence of data, expert knowledge was used to parameterise the model, and model evaluation relied on peer-review and sensitivity analysis. The research highlighted the benefits and limitations of Bayesian Belief Networks and the Structured Decision Making approach in a typical natural resource management situation.