Hello I have been seaching on the internet for an answer to no avail My Geum Mrs Bradshaw has developed what almost look like green pustules on it's leaves the underside of these bumps is white. Cant find any insect living in them is it a virus? What should I do?
flowered ok on first flush but no flowers since and looks a little under the weather.
Nora
Hmm..without picture is difficult to identify accurately..but options are...virus, oedema or some sort of mite..though haven't seen any insects..some are too small for bare eyes to see.
My money is on oedema that is caused by plants getting too much water...and haven't we had plenty of that.. ::)
http://www.ca.uky.edu/agcollege/plantpathology/ext_files/ppfshtml/ppfs-or-h-5.pdf
There is nothing you can do with oedema..leave the leaves be on plants as removing them while still alive and 'well' will just add to the problem. More leaves on plant and more it is able to deal with excess moisture. It is unsightly but usually don't do any long lasting harm.