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Plant Improvement Act, 1976 (Act No. 53 of 1976)

Notices

South African Seed Potato Certification Scheme

21. Post-control sample

 

(1) A post-control sample shall be taken during tuber inspections of a presentation in terms of section 28
(a) in order  to confirm the virus results of all seed potatoes certified as G1 to  Certified Commercial seed potatoes; and
(b) in order to confirm whether the seed potatoes are true to variety.

 

(2) The authority may withdraw the certification of seed potatoes in accordance with the provisions of section 31 if the results of the post-control sample exceed 15% for Potato Virus Y, 5% for PLRV, 5% for TSWV and 15% total virus content.

 

(3) The size of the post-control sample drawn shall, with regard to—
(a) the purpose contemplated in subsection (1)(a)—
(i) in the case of G1 to Certified Commercial seed potatoes, be 200 tubers per 5 000 x 25 kg containers or a portion thereof; and
(ii) in the case of not more than 25 x 25 kg bags, be 80 tubers and each tuber will be tested separately.
(b) the purpose contemplated in subsection (1)(b), be 60 tubers per 5 000 x 25 kg containers or a portion thereof.

 

(4) All post-control samples shall be taken under the supervision of a certification official, or a person designated by the authority, and be tested to the satisfaction of the authority.

 

(5) Post-control samples shall be taken from at least 25 x 25 kg containers per 5 000 x 25 kg containers or a portion thereof for each presentation.