Some of my kumeras have blight. What causes this? It has only affected one or two kumera and not the whole lot from the plant.
Certified GKH Gardening Expert
Typically blights on sweet potatoes (Kumara for you there) is caused by bacteria and there are no cures for most. I would pull the affected plants ASAP before it spreads to the other plants. If you can give us more detail about the symptoms the plants have, we will be better able to pinpoint the exact blight affecting them.