Table 2.

The variable, fixed, and total cost of four different control methods (i.e., no control, prescribed burning, synthetic chemicals, and mechanical) for Ziziphus mauritiana. The variable costs are density-dependent, whereby additional materials and labour are required for very dense infestations [69].

	Fixed Costs (ha−1)	Variable Costs (ha−1)	Total Cost (ha−1)
No Control	AUD$0	AUD$0	AUD$0
Burning	AUD$15	AUD$0	AUD$15
Chemical	AUD$37.50	AUD$112.50	AUD$150
Mechanical *	AUD$50	AUD$50	AUD$100

* Blade-Ploughing.