Treetec Consulting Pty. Ltd. is a forestry and horticultural based company providing consultancy and management services and microbiological products.

He has worked with major forestry companies in Australia including Bunning’s Tree farms, (Western Australian Plantation Resources) Associated Pulp & Paper Mills and Australian Newsprint Mills on the inoculation of plantation eucalypts with mycorrhizal fungi and nutrient application to maximize tree growth.

Dr Malajczuk also has extensive forestry experience in China, the Philippines and Japan. More recently he has been a consultant to forestry projects in the agricultural areas of Western Australia. In 1994 he was appointed an Adjunct Associate Professor at Murdoch University in Western Australia and supervises Honours and PhD students in various aspects of forestry. He was appointed to Fellow and Adjunct Professor in the Institute of Natural Resource Management, The University of Notre Dame, Australia. He has published over 150 research papers in international journals and books. Most recently Dr. Malajczuk was appointed an adjunct professor at Edith Cowan University, Perth, Western Australia.

Treetec Consulting Pty Ltd has initiated the growing of truffles in Western Australia and Tasmania, the production of inoculum of mycorrhizal fungi for forest nurseries and promoted the growing of irrigated Paulownia trees on farm lands in Australia. Dr Malajczuk has combined production with ongoing research, encouraging and funding positions within the Universities and acted as consultant to private investment companies in Australia growing eucalypts, teak, brushwood and sandalwood.