Alex McDonald Ltd

The Pathogen Tested Scheme

In 1976, Alex McDonalds entered a Joint Venture with Crop Research DSIR for the production of potatoes using the tissue culture method. After 4 years trialing, this was accepted by NZ M.A.F and Crop Research DSIR as a worthwhile improvement in the production of quality seed potatoes and we entered a long term joint venture at that time. This carries on today with a contract operating with Plant & Food Research Institute Ltd - Lincoln, where we employ one full time scientist and one glasshouse manager using laboratory and glasshouse facilities provided by Plant & Food Research Institute Ltd.

This forms the basis of the Pathogen Tested Certification Scheme which now handles approximately 65% of the seed potatoes required in New Zealand. We currently produce approximately 70 commercial varieties to meet the New Zealand industry's requirements.

Getting in touch

Head office

171 Waterholes Road
Springston, Canterbury


P.O. Box 92013, Faringdon,
Rolleston 7650,

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