Abstract:
Silver scurf is caused by a fungus, Helminthosporium solani, a relatively new problem related to potato production in North America. It wasn’t until the early 1990s that this fungus was identified as being a serious problem in the Pacific Northwest. This fungus produces a surface blemish on tubers, causing them to look dirty. Although some tubers initially become infected in the field, the greatest damage occurs in storage,
particularly with increasing time in storage. Economic losses also occur due to increased requirements for inspection and sorting in lots with damage.
