Viewing post #811508 by Muddymitts

marioncastleton said:Thank you to all who replied to my iris question. Great to have so much feedback. I will look into the suggestions. I have a few iris here and so far have never seen iris borer. I wonder if "Muddymitts" could let me know some preventative measures?

For some reason, I missed this thread yesterday -- so sorry for no reply..............

Marion, you've already received good responses on this issue. The best preventative is to keep your Iris beds clean -- removing dead leaves, etc. It's my understanding that it's pretty easy to see the borer inside the leaf (as it chews its way down to the rhizome) -- and equally easy to just squish it with your fingers. Might be quite a job if you have nearly 400 varieties, as I do................. But if your government prevents the use of systemics, then you'll have to be vigilant in your manual approach.