ANNEX IISupplementary provisions
ANNEX II Minimum Conditions for certified seed potatoes (1) The conditions for certified seed potatoes of ‘Union grade A’ shall be as follows: (a) conditions concerning seed potatoes: (i) the number of plants not breeding true to the variety and the number of plants of a different variety shall, together, not exceed 0,2 %; (ii) the number of growing plants affected by blackleg shall not exceed 2,0 %; (iii) in the direct progeny the number of plants with symptoms of virus infection shall not exceed 8,0 %; (iv) the number of growing plants with mosaic symptoms or symptoms caused by leaf roll virus shall not exceed 2,0 %; (b) tolerances applicable to lots, as regards the following impurities, blemishes and diseases: (i) seed potatoes affected by rots, other than ring rot or brown rot, shall not exceed 0,5 % by mass, of which seed potatoes affected by wet rot shall not exceed 0,2 % by mass; (ii) seed potatoes affected by black scurf over more than 10 % of their surface shall not exceed 5,0 % by mass; (iii) seed potatoes affected by common scab over more than one third of their surface shall not exceed 5,0 % by mass; (iv) seed potatoes affected by powdery scab over more than 10 % of their surface shall not exceed 3,0 % by mass; (v) shrivelled tubers due to excessive dehydration or dehydration caused by silver scurf shall not exceed 1,0 % by mass; (vi) seed potatoes with external blemishes, including misshapen or damaged tubers, shall not exceed 3,0 % by mass; (vii) presence of earth and extraneous matter shall not exceed 2,0 % by mass; (viii) the total percentage of seed potatoes covered by tolerances, as referred to in points (i) to (vi), shall not exceed 8,0 % by mass. (2) The conditions for certified seed potatoes of ‘Union grade B’ shall be as follows: (a) conditions concerning seed potatoes: (i) the number of plants not breeding true to the variety and the number of plants of a different variety shall, together, not exceed 0,5 %; (ii) the number of growing plants affected by blackleg shall not exceed 4,0 %; (iii) in the direct progeny the number of plants with symptoms of virus infection shall not exceed 10,0 %; (iv) the number of growing plants with mosaic symptoms or symptoms caused by leaf roll virus shall not exceed 6,0 %; (b) tolerances applicable to lots, as regards the following impurities, blemishes and diseases: (i) seed potatoes affected by rots, other than ring rot or brown rot, shall not exceed 0,5 % by mass, of which seed potatoes affected by wet rot shall not exceed 0,2 % by mass; (ii) seed potatoes affected by black scurf over more than 10 % of their surface shall not exceed 5,0 % by mass; (iii) seed potatoes affected by common scab over more than one third of their surface shall not exceed 5,0 % by mass; (iv) seed potatoes affected by powdery scab over more than 10 % of their surface shall not exceed 3,0 % by mass; (v) shrivelled tubers due to excessive dehydration or dehydration caused by silver scurf shall not exceed 1,0 % by mass; (vi) seed potatoes with external blemishes, including misshapen or damaged tubers, shall not exceed 3,0 % by mass; (vii) presence of earth and extraneous matter shall not exceed 2,0 % by mass; (viii) the total percentage of seed potatoes covered by tolerances, as referred to in points (i) to (vi), shall not exceed 8,0 % by mass.