New research shows forest-destroying threats are on the rise while investment in conservation wanes.
A Landcare Research paper out this week warns weed invasions are eating away at large swathes of forest undergrowth.
Scientists have also been raising the alarm about an explosion in deer, goat and pig populations.
And diseases like Myrtle Rust are burning through old trees, with the goal of eradication long gone.
Meanwhile, conservation funding has been slashed by 21 percent, dropping by $152 million for 2026-2027.
Peter Bellingham is a senior researcher at Manaaki Whenua Landcare Research, and speaks to Kathryn about the irreversible damage that may lie ahead.