05/03/2026
Drone Spraying of Glyphosate Over Endangered Species Habitat at Te Henga Goes Ahead Despite Environment Court Appeal
MEDIA RELEASE
Flora and Fauna of Aotearoa, 4 March 2026
Flora and Fauna of Aotearoa is expressing deep alarm following confirmation that aerial drone spraying of glyphosate based herbicides (GBHs) has proceeded over the nationally significant wetlands of Te Henga — despite a last-minute application to the Environment Court of New Zealand seeking to halt the operation.
The spraying, which is aimed at targeting willow, has taken place in habitat known to support critically endangered long-tailed bats and matuku (Australasian bittern), within one of West Auckland’s most ecologically sensitive wetland systems.
This is reportedly the second year of a three-year aerial campaign to control the willow trees in the wetland, and is being carried out by the private environmental group Matuku Link in the public conservation area. The local community has twice prevented aerial spraying in this area due to major ecological and health concerns – including a successfully high court injunction in 2010 against Auckland Regional Council.
“This is shocking,” said Asha Andersen, spokesperson for Flora and Fauna of Aotearoa. “We are talking about the aerial application of glyphosate — a highly controversial agrichemical — by drone, directly over waterways and wetlands of national significance, and within the habitat of some of Aotearoa’s most endangered species.”
According to information confirmed by the W**d Management Advisory, an application for an interim enforcement order was lodged with the Environment Court last week to immediately stop the spraying. Despite this, and many other questions around its legitimacy the operation went ahead.
Flora and Fauna of Aotearoa says this raises serious questions about transparency, due process, social license and ecological risk.
“Conservation organisations should not be putting endangered species at risk,” Ms. Andersen said. “Their mandate is to protect biodiversity, not expose critically threatened wildlife to aerial pesticide applications in sensitive wetland habitats. When conservation work begins to mirror the very practices communities are concerned about, trust is eroded.”
Flora and Fauna of Aotearoa understands that Auckland Council had previously suspended aspects of the consent process for this year’s spraying on advice from the Parliamentary Commissioner for the Environment. Yet aerial spraying with glyphosate has now reportedly resumed with more to come on Friday 6th March.
Glyphosate, widely known under the trade name Roundup, remains a subject of international debate regarding environmental and health impacts. Its aerial application over wetlands raises additional concerns about spray drift, contamination of waterways, and impacts on non-target species including people and properties.
Flora and Fauna of Aotearoa is calling for:
- An immediate halt to all aerial pesticide spraying in the Te Henga wetlands while legal proceedings are underway.
- Full public disclosure of the consent status and decision-making process.
- An independent ecological review of impacts on endangered bats, bittern, and wetland ecosystems.
- Genuine community consultation before any further willow treatment is undertaken.
“Public conservation land must be managed with the highest level of care and accountability,” Flora and Fauna’s Ms. Andersen said. “People deserve to know what is happening in their wetlands — and endangered wildlife deserve better than to be caught in the fallout of controversial chemical operations.”
The people of West Auckland have a long history of standing up for their environment. They deserve answers.
End.
This image is created using AI to demonstrate what is happening in the endangered Bittern and Long-tailed bat habitat under the guide of conservation.
