Viewing post #2001195 by Australis

Following up on this, I contacted the lab I use for virus testing my Orchids and asked if they can also check Iris. They can and were happy for me to quote the info here:

DPIPWE Tasmania said:Thanks for your enquiry. As you might know, there are a number of viruses (at least 7) that infect iris. The best place to start is with an EM screen as some of the most important ones are Potyviruses which can be detected via EM although not distinguished to species level. We also have antisera to a number of them to test by ELISA if you wanted to know more info.

A general EM screen (when not testing orchids) is $48.40. Depending on the result we can then quote further if required. Keep in mind though that some iris varieties are almost always infected with one of the potyviruses – at least that used to be the case.

So for any Australians that want to test their Irises, you can do so by contacting Peter Cross at DPIPWE in Tasmania:
https://dpipwe.tas.gov.au/bios...