Under the Lens

Under the Lens: Kauri Dieback, Where Biodiversity Intersects with Biosecurity

Under the Lens

Show Notes

Kauri dieback, caused by the pathogen Phytophthora agathidicida, has reshaped how Aotearoa New Zealand understands risk, responsibility, and care for the natural world. This episode unpacks the biology of the pathogen, the cultural significance of kauri, and the long journey from confusion to coordinated response. Our hosts revisit the early days when dead and dying kauri began raising alarms, the rapid surge in concern from communities, and the urgent scramble to understand a pathogen unlike anything researchers had dealt with before. They explore how soil, water, animals, and people move the disease, why early management had to adapt quickly, and how molecular tools reshaped what we know about this organism.

We also look at the important contributions of iwi, community groups, scientists, landowners, and volunteers who stepped into leadership roles during a time of uncertainty. The episode highlights both the complexity of the challenge and the resilience of those determined to keep kauri standing. Hosted on Acast. See acast.com/privacy for more information.

More from Under the Lens

Sep 15, 2026

No one has said we don't need biosecurity. There are ways to do this. There are people with knowledge, there are communities who care, and there are ways to secure and protect the unique landscapes of Aotearoa.

Sep 1, 2026

Tame Malcolm (Te Arawa: Ngāti Tarāwhai, Ngāti Pikiao, Ngāti Ngararanui, Ngāti Whakaue) has spent his career getting people excited about the bush, the birds, and the ecosystems that make Aotearoa unique. Because as he puts it, no one protects what they don't know. In this episode the General Manager of Te Arawa Lakes Trust explores what biosecurity could look like if we wiped the slate clean and started from something uniquely ours, grounded in Aotearoa's own identity, culture, and knowledge.

Aug 18, 2026

Biology has changed. The amount of biological data we can now collect has exploded, from automated sensors at our borders to genomic data tracking where pests come from. But are we maximising the opportunities to gather insight that this data could offer?

Aug 4, 2026

Biosecurity is often thought of as systems and agencies. But communities, people, and places are also doing the long term work, often with little resourcing and even less say in how it gets done.

Jul 21, 2026

Season two of Under the Lens is here, and we are starting somewhere unexpected. Fellow co-hosts Amanda and Peter turn the lens on Nick Waipara, drawing on his 25 years in biosecurity to ask what a reimagined system would actually look like.

See all episodes →