Table 3.

Calculations of Ollerenshaw Index.

Region	Season	Ollerenshaw Index	Risk category	p-value (Mann-Whitney)
Taralga	Summer – Annual	407.46	Disease prevalent
	Summer – 2014/2015*	399.17	Occasional losses	1.000
	Summer – 2015/2016	296.22	Little to no disease	0.394
	Winter – Annual	344.49	Occasional losses
	Winter – 2015	263.89	Little to no disease	0.690
	Winter – 2016	204.78	Little to no disease	0.056
Guyra	Summer – Annual	538.89	Disease prevalent
	Summer – 2014/2015*	478.83	Disease prevalent	0.545
	Summer – 2015/2016	423.92	Disease prevalent	0.113
	Winter – Annual	416.31	Disease prevalent
	Winter – 2015*	368.86	Occasional losses	0.413
	Winter – 2016	230.63	Little to no disease	0.008

^*Pre-study period.