Garth was awarded a Ph.D. in plant physiology, and a D.Sc. in Kiwifruit Physiology, both from Waikato University. He then founded two companies based upon his research; one centred on the discovery of two plant based compounds that are safe for humans but highly effective against drug resistant malaria, and the other company on a zero calorie sweetener extracted from a fruit. Garth is a scientist with an international reputation who has published approximately 200 scientific papers on plant physiology
Plant Physiology