The harvested acreage and yield production data used in this report are from the Small Grains Summaries developed by the National Agricultural Statistics Service, USDA.  Loss data are a summary of estimates made by personnel of the state departments of agriculture; university extension and research projects; Agricultural Research Service, USDA; and the Cereal Disease Laboratory.  Please be aware the estimates provided by cooperators may be  developed using different methodologies.

Losses (in bushels) were calculated for each rust as follows:

	(Production) X (Percent loss)
Loss (specific rust) =
	(100%) - (Percent loss due to rusts)

Losses are indicated as a trace when the disease was present in commercial fields but losses statewide were less than 1%.  Zeros indicate the disease was not reported in commercial fields in that state during the season.   Trace amounts were not included in the calculation of totals and averages.

Additional resources:

• Cereal rust situation reports in the U.S.
• Cereal Rust Bulletins

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Small grain losses due to rust, by host
2012	in map format	NASS 2012 Small Grains Summary
2011	in map format	NASS 2011 Small Grains Summary
2010	in map format	NASS 2010 Small Grains Summary
2009	in map format
2008	in map format
2007	in map format
2006	in map format
2005	in map format
2004	in map format
2003	in map format
2002

Winter wheat	Spring wheat	Durum	Oat	Barley	Rye
2001-2002	2001-2002	2001-2002	2001-2002	2001-2002	2001-2002
1991-2000	1991-2000	1991-2000	1991-2000	1991-2000	1991-2000
1981-90	1981-90	1981-90	1981-90	1981-90	1981-90
1976-80	1976-80	1976-80

All wheat	Oat	Barley	Rye
1971-75	1971-80	1971-80	1971-80
1961-70	1961-70	1961-70	1961-70
1951-60	1951-60	1951-60	1951-60
1941-50	1941-50	1941-50	1941-50
1931-40	1931-40	1931-40	1931-40
1921-30	1921-30	1921-30	1921-30
1918-20	1919-20	1919-20	1919-20