Posted by Pentti Ketola on 28-01-2020 13:58
#1
Hi
Can anyone help me to identify this mine of Rubus saxatilis?
Photo on Finland Kokkola 17 Aug. 2019.
Thanks for help.
Edited by Pentti Ketola on 28-01-2020 14:02
Posted by John Carr on 28-01-2020 15:26
#2
Several leaves are turning colors without evidence of mining so I'm not sure you have mines. Blotch mines in
Rubus in Europe are described here:
https://bladminee...eae/rubus/.
Posted by Tony Irwin on 28-01-2020 20:26
#3
I'm inclined to agree with John. Unless you can see evidence of frass within the blotch, I would suggest this is a fungal problem - particularly the way it's affecting the very edge of the leaf.