I am posting photos of a german iris that used to be white over purple and now shows mottled standards and discoloured foliage. 5 of that variety have bloomed and all look the same this year. I ignored the change last year and likely let it spread. I suspect mosaic virus from what I can find on the internet? Should I destroy all irises that bloom like this as well as all irises that didn't bloom but have discolouration of the foliage? Anyone have experience with this? Teresa
The mottling could be viral, although in general plants that appear virused often actually have another problem.
Do you have any advice on how I should manage this problem? What else might be the cause of the discoloration? I'm afraid this might spread to my favorite cultivar and am prepared to remove it to prevent that. Thanks, Teresa