Iris rust

18th August 2006, Friday

I have quite a few, mostly self-sown, gladdon (aka stinking iris, Iris foetidissima) plants in the garden and this year for the first time they have been quite severely affected with the rust fungus Puccinia iridis – see the yellow spots on the leaves in the picture. I have not noticed this on these plants before, either in the garden or in the wild, and I wondered how widespread it was in the area this year?