Use potato tubers for seed from disease-free areas to ensure that the pathogen is not carried through seed tuber.
The infected plant material in the field should be properly destroyed.
Grow resistant varieties .
Fungicidal sprays on the appearance of initial symptoms. Spraying should be done with Dithane M-45 or Dithane Z-78 (2.5 kg/I 000 litres of water per hectare). Spraying should be repeated at 10-12 days' interval
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