11. Tuber stock
All tubers should have a minimum 12 weeks cool storage at 4°C prior to pregermination
‐ refer #18 and planting.
Discard diseased tubers and any with dry/sunken or discoloured tips. Heavy
scarring close to the tip may also lead to bad germination or further disease.
Cracks/fissures in the tuber may also allow entry of disease.