PI-005: Chapter 5 - Seed Potato Crop Inspection
6.0 Growing Crop Certificate- Seed potato (CFIA/ACIA 1318)

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Where an inspector has inspected crops in a farm unit and determined that they meet all the standards as set out in the Seeds Regulations Part II for the applicable class of seed potatoes, the Growing Crop Certificate (CFIA/ACIA 1318) shall be issued by a CFIA inspector or the Regional Program Officer. In addition to the grower and farm unit information, for each crop the certificate must specify:

  • The class and variety of each crop of seed potatoes
  • For Breeder's Selection seed potatoes, the variety, clone identification, provided on the application (CFIA/ACIA 1317)
  • The number of hectares that passed inspection
  • The certification number

When changes are made to the Growing Crop Certificate, such as the combining of lots after harvest, the original certificate should be revoked by issuing a Revocation of Certification (CFIA/ACIA 2546) (Appendix 7) and a new Growing Crop Certificate may be issued provided that all stated crops/lots continue to meet regulatory requirements.

6.1 Conditions when a Growing Crop Certificate - Seed Potato (CFIA/ACIA 1318) is not issued for a Particular Crop

The Growing Crop Certificate shall not be issued with respect to an individual crop, if the inspector becomes aware of certain circumstances after the final inspection. Some of these following circumstances may have become apparent after or during final inspection, in which it may terminate the inspection (Section 5.3.3.2):

  • The crop was not top-killed as directed by an inspector when necessary, or
  • The crop was top-killed or not suitable to conduct a minimum of two crop inspections, or
  • The crop has been treated with a sprout inhibitor or has been exposed to a sprout inhibitor, as in the case of drifting from another field, or
  • If the inspector determines that the crop has been infected with PSTVd or seedinfected with that pathogen was used to plant the crop.

6.2 Conditions when a Growing Crop Certificate - Seed Potato (CFIA/ACIA 1318) is not issued for any Crop on the Farm Unit

The Growing Crop Certificate shall not be issued with respect to any of the crops produced on a Farm Unit, under any of the following circumstances:

  • Any common or custom equipment was used in cutting tubers infested with BRR, or in planting, spraying or cultivating a crop infested with BRR unless the equipment, each time prior to entering a field of the farm unit, has been thoroughly cleaned and disinfected in such a way as to destroy the contamination, prevent the infection of the crop and the grower demonstrates to the inspector's satisfaction that the clean-up and disinfection have been completed;
  • It is evident through crop inspection or testing in a laboratory that the crop has been contaminated with Clavibacter michiganensis subsp. sepedonicus or a pest of quarantine significance.

6.3 Revocation of a Growing Crop Certificate - Seed Potato (CFIA/ACIA 1318)

There are circumstances when a Growing Crop Certificate has been issued, but information may become available after the issuance, deeming it necessary to revoke the certificate.

With respect to an individual crop the Growing Crop Certificate may be revoked at any time if the inspector determines that the crop was subject to any of the following circumstances:

  • Has been exposed to sprout inhibitors or other harmful chemicals;
  • Has lost its identity;
  • Has lost its ability to propagate;
  • Is infected with PSTVd or was produced from seed potatoes infected with PSTVd.

With respect to all of the crops produced on a Farm Unit a Growing Crop Certificate(s) may be revoked at any time under any of the following circumstances:

  • The inspector determines that any one of the lots is infected with Clavibacter michiganensis subsp. sepedonicus.
  • Any one of the lots has come in contact with a Clavibacter michiganensis subsp. sepedonicus or any common or custom equipment used on a potato operation which was infested with Clavibacter michiganensis subsp. sepedonicus, unless an inspector has verified that a clean-up and disinfection of the equipment had been completed before use of the equipment on the farm unit.
  • The inspector determines that non-certified potatoes from another farm unit are stored with the certified seed potatoes.
  • The certified seed potatoes are stored, graded or handled with common equipment that has not been satisfactorily cleaned and disinfected after being used to handle non-certified potatoes.

If a Growing Crop Certificate (CFIA/ACIA 1318) is to be revoked, the Revocation of Certification form (CFIA/ACIA 2546) should be used and a copy kept on file.

6.4 Combination of Multiple Crops/Lots into One Lot

In response to a grower's request, an inspector may combine multiple crops of the same variety that have been determined to meet the applicable class, into one lot.

  1. If multiple lots of different classes of a single variety are stored in the same bin without proper separation, to prevent the mixing of classes, the CFIA inspector must than adjust and retain only the certificate number of the lot with the lowest class.
  2. If multiple lots of the same class of a single variety are stored in the same bin without separation, then the seed potatoes will be given the certificate number of the lot with the highest disease percentage.

In both circumstances, the chosen certificate number will be put on the Report of Field Inspection (CFIA/ACIA 1284) for all the relevant crops, while their field numbers and inspection recordings remain same. The combined lot will represent all the relevant crops on the Growing Crop Certificate (CFIA/ACIA 1318).

In the event that the crops/lots were combined after the certificate was issued, the original Growing Crop Certificate must be revoked, corrected and reissued. The inspector should refer to the MCAP manual for detailed instructions on combining multiple fields, crops and lots in MCAP.

Note: Some export markets do not allow for the combination of fields (i.e Mexico, Uruguay etc.), therefore inspectors should checked with their respective Regional Program Officer for specific market information before getting agreement from the grower to proceed with combining fields, crops or lots.

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