Final diagnosis


Potato virus M (PVM)

Spoon-shaped rolling of the upper potato leaves infected by <b><i>Potato Virus M</b></i> (PVM) (healthy plant on the left, infected plant on the right).
Severe symptoms on potato leaves induced by <b><i>Potato Virus M</b></i> (PVM): deformed leaves and mosaic symptoms
Symptoms on potato leaves caused by <b><i>Potato Virus M</b></i> (PVM) in a different cultivar with deformed leaves without leaf rolling