Advancing Forest Health Through Microbial Innovation
New Zealand’s commercial radiata pine plantations face significant challenges from foliar diseases that threaten productivity and sustainability. A major research initiative at Lincoln University has secured an extension of funding under the Ministry of Business, Innovation and Employment’s Smart Ideas programme to develop novel microbial solutions.
The Challenge Facing Radiata Pine
Radiata pine is the backbone of New Zealand’s forestry sector, supporting jobs, exports and regional economies. Diseases such as Dothistroma needle blight and Red Needle Cast can cause substantial needle loss, reduced growth rates and increased management costs. Traditional chemical controls have limitations, prompting a shift toward biological approaches that harness natural microbial compounds.
Origins of the Smart Ideas Project
The project, titled Unlocking the potential of microbial bioactive compounds to promote forest health, builds on earlier laboratory findings by Dr Artemio Mendoza-Mendoza at Lincoln University and Emeritus Professor Rosie Bradshaw at Massey University. Their work identified microbial bioactive compounds (MBCs) produced by beneficial microorganisms that suppress key pathogens in pine trees.
Funding Extension and Next Phase
The recent Smart Ideas extension allows the team to move from controlled laboratory experiments into real-world field trials. This transition is critical for validating efficacy under varying environmental conditions across New Zealand’s diverse plantation landscapes.
Scientific Approach and Key Partners
Researchers combine expertise in microbiology, plant pathology and forestry. Industry partners provide access to trial sites and practical insights, ensuring the solutions align with commercial forestry practices. The collaborative model strengthens knowledge transfer between academia and the sector.
Potential Benefits for the Forestry Industry
Successful MBC-based treatments could reduce reliance on synthetic fungicides, lower operational costs and support more resilient forest ecosystems. Early results suggest these compounds may enhance tree defences while maintaining environmental standards valued in export markets.
Broader Implications for New Zealand
Healthy pine plantations contribute to carbon sequestration, biodiversity corridors and rural employment. Advances in this research align with national goals for sustainable land use and climate resilience. The project also offers training opportunities for postgraduate students and early-career researchers.
Future Outlook and Ongoing Work
Field trials will continue over the coming seasons, with data informing potential commercial applications. The team is exploring additional microbial candidates and delivery methods to maximise impact across different disease pressures and regions.
Photo by Sung Jin Cho on Unsplash
Opportunities for Researchers and Students
Projects of this nature highlight growing demand for expertise in plant-microbe interactions, forest health and applied microbiology. Lincoln University and partner institutions continue to welcome applications from motivated PhD candidates and postdoctoral researchers interested in these areas.
