Meet our team

 Greg Jones is a second-generation macadamia grower who has been in the industry since his parents purchased their first farm in 1988. He has an in-depth knowledge of best practice nursery production, varieties, growing regions, nutrition, irrigation, and integrated pest & disease management.

Greg is passionate about using the latest, cutting edge research to improve productivity and profitability. Over the last two decades he has collaborated with key Australian research agencies in countless on-farm research projects and trials. He now manages three macadamia farms (80 hectares) in the Northern Rivers of NSW.

Dieter Kramer is a professional macadamia nurseryman with more than two decades of nursery experience under his belt. Dieter has managed large scale macadamia nurseries in both Australia and South Africa, including Gray Plantations in northern NSW, one of Australia’s leading macadamia enterprises. In South Africa, he managed his family-owned 200,000-macadamia tree nursery at the Mount Carmel Sugar Estate, for 20 years. He is well known throughout the industry for his exceptional attention to detail, and precision skills in seedling cultivation, grafting and pruning.

  Marianka Kramer is Macmandu’s nursery operations manager and the first port of call for customers wishing to discuss their specific requirements. Marianka has worked in the macadamia industry since 2010 and is responsible for keeping the day to day logistics of the large nursery running efficiently. This includes ensuring plants get the right amount of water and fertiliser, checking plant quality, coordinating accounts, and training new staff in the art of grafting and pruning. Before moving to Australia, Marianka was a human resources manager for a large agricultural company in South Africa.