I do not mean the yellow colouring of the leafes. Of course they are dying down but these stripes confuse me a bit.
What I mean is that once the leaves have started to die back, then it's not easy to tell if the striping is due to virus or whether it's just due to the normal dying back process. Some snowdrop leaves seem to die back in a uniform yellow colouring without stripes, while others do seem to develop some striping as they die back (especially the wider-leaved plicatus and nivalis x plicatus types). Whether that's a sign if virus or just how they die back is difficult to say.
