So I did more research to try and find out what happened this year. Lets compare the numbers over the last few years to see if anything jumps out; shall we?
Iris cultivar acquisitions since 2008.
2008 9
2009 33
2010 143
2011 101
2012 83
2013 102
Note: I started out with 29 cultivars from my mother in 2005; mostly NoIDs which I was able to get the names for half of them. I only started buying in 2008. 2010 was when I decided to collect Sterling Innerst cultivars and got lots.
2010 8 Dykes; 4 Joan Roberts; 27 Sterling Innerst
2011 0 Dykes; 1 Joan Roberts; 65 Sterling Innerst
2012 9 Dykes; 5 Joan Roberts; 21 Sterling Innerst; 2 Crump
Looks like a cure is unlikely.