PI-005: Chapter 5 - Seed Potato Crop Inspection
Appendix 8: Regulatory Tolerances for Field Grown Seed Potatoes

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Class Disease or Varietal Mixture % on First or any Subsequent Inspection % on Final Inspection
Pre-Elite PSTV 0 0
Pre-Elite BRR 0 0
Pre-Elite

Total all viruses

0 0
Pre-Elite

Total blackleg and wilts

0 0
Pre-Elite

Varietal mixtures

0.1 0
Elite I

PSTV

0 0
Elite I

BRR

0 0
Elite I

Total all viruses

0.1 0
Elite I

Total blackleg and wilts

0.1 0.1
Elite I

Varietal mixtures

0.1 0
Elite II

PSTV

0 0
Elite II

BRR

0 0
Elite II

Total all viruses

0.2 0.1
Elite II

Total blackleg and wilts

0.2 0.2
Elite II

Varietal mixtures

0.1 0
Elite III

PSTV

0 0
Elite III

BRR

0 0
Elite III

Total all viruses

0.3 0.2
Elite III

Total blackleg and wilts

0.3 0.3
Elite III

Varietal mixtures

0.2 0.05
Elite IV

PSTV

0 0
Elite IV

BRR

0 0
Elite IV

Total all viruses

0.6 0.3
Elite IV

Total blackleg and wilts

0.5 0.5
Elite IV

Varietal mixtures

0.2 0.1
Foundation

PSTV

0 0
Foundation

BRR

0 0
Foundation

Total all viruses

1 0.5
Foundation

Total blackleg and wilts

1 1
Foundation

Varietal mixtures

0.4 0.2
Certified

PSTV

0 0
Certified

BRR

0 0
Certified

Total all viruses

3 2
Certified

Total blackleg and wilts

3 2
Certified

Varietal mixtures

1 0.5
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