The Guide provides a pictorial reference to pests and diseases affecting potato quality as an aid to using the Standard.

The Guide is intended to assist seed potato inspectors and producers in assessing seed potato quality, in conjunction with the use of the Standard.

The Guide is not an exhaustive list of pests and pathogens of potatoes. It focuses on the most common faults relevant to seed potato production and trade.

UNECE Standard S-1 concerning the marketing and commercial quality control of seed potatoes. United Nations. New York and Geneva, 2014.

Foto: Christine Baker

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