Test for the presence of Rhizomania caused by Beet necrotic yellow vein virus (BNYVV) within soil. BNYVV can cause severe damage if the infection spreads into the whole plant.

Powdery scab (Spongospora subterranea) is a fungal blemish disease of potatoes. A cosmetic defect with small lesions occurring in the early stages of the disease, progressing to raised pustules containing a powdery mass.

Powdery scab (Spongospora subterranea) is a fungal blemish disease of potatoes. A cosmetic defect with small lesions occurring in the early stages of the disease, progressing to raised pustules containing a powdery mass.