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  Seed Health Laboratory  

Documents Required
(To Receive Seed from CIMMYT-Mexico)

All wheat, triticale, barley, and maize seed exported by CIMMYT in an international nursery or miscellaneous shipment must be accompanied by three documents:

  • An international phytosanitary certificate issued by the DGSV
  • A CIMMYT health certificate (in either English or Spanish) issued by the SHL
  • Declaration of value

DGSV issues international phytosanitary certification by checking seed packets. Certification by CIMMYT is based on field inspection of crop multiplication plots, examination of whole seed, and the use of seed washing, greenhouse tests, incubation, and serological tests conducted by the SHL.

CIMMYT maize, barley, triticale, and wheat seed is dispatched as clean as possible, to avoid the spread of seed-borne plant diseases and any risk of rejection of the seed shipment on arrival in the country of destination. When countries with very strict import regulations require an untreated seed sample, this is sent separately for testing on arrival.

Quarantine laws regulate pests all over the world as A1 or A2. A1 pests are quarantine pests not present in a given area and A2 pests are quarantine pests present in that area but not widely distributed and thus under official control. All CIMMYT maize, barley, triticale, and wheat seed that is shipped must be free from A1 and A2 pests.

Laboratory tests conducted by the SHL to detect possible seed-borne and seed-transmitted pathogens are listed in Tables 1 and 2. Other tests are conducted upon request if the country of destination has special requirements.

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