AgriZeroNZ invests in methane-reducing tech
A US-based company developing a vaccine to reduce methane emissions in cattle has received another capital injection from New Zealand’s agriculture sector.
Rob Hewett has been appointed the new chair of AgriZeroNZ, the public-private partnership designed to accelerate the development of tools to help Kiwi farmers reduce emissions.
The appointment follows the departure of Sir Brian Roche who steered the joint venture (JV) through its establishment phase.
Roche left the JV in November to take up the role of Public Service Commissioner.
Hewett is a sixth-generation farmer with a 1050ha sheep, beef, wind and forestry operation in South Otago, and holds multiple governance roles across agriculture, horticulture, exporting and energy sectors.
Currently, he chairs Silver Fern Farms, Farmlands, Woolworks, Hilton Haulage, Pioneer Energy, Fern Energy and Rewiring Aotearoa. He is also a director on T&G Global.
Hewett was endorsed for the AgriZeroNZ role by its investor partners (The a2 Milk Company, ANZ, ANZCO Foods, ASB, BNZ, Fonterra, Rabobank, Ravensdown, Silver Fern Farms, Synlait and MPI) and ratified by Cabinet given the Crown’s 50 per cent shareholding.
He says he is excited to join the JV and foster its focus on helping New Zealand farmers meet the global demand for emissions reduction.
“AgriZeroNZ is a fantastic example of how a group of disparate companies can come together with the government to solve a problem common for all New Zealand agriculture,” says Hewett.
“AgriZeroNZ’s work is not only fundamentally important for our collective future licence to operate among discerning global customers, it’s also personal for me as our family’s farming future will in large part be determined by the success of these activities,” he says.
AgriZeroNZ director, Fraser Whineray says the board and team are pleased to welcome Hewett.
“It’s important that AgriZeroNZ’s momentum and progress towards getting practical tools into the hands of New Zealand farmers at the earliest opportunity continues. Rob’s mix of extensive governance and hands-on farming experience makes him a great fit for this task.”
To date, AgriZeroNZ has committed over $46 million across a rapidly expanding portfolio of ventures, research projects and trials. This includes a methane-inhibiting bolus, vaccines, novel probiotics, feed additives and low-emissions pasture.
Legal controls on the movement of fruits and vegetables are now in place in Auckland’s Mt Roskill suburb, says Biosecurity New Zealand Commissioner North Mike Inglis.
Arable growers worried that some weeds in their crops may have developed herbicide resistance can now get the suspected plants tested for free.
Fruit growers and exporters are worried following the discovery of a male Queensland fruit fly in Auckland this week.
Dairy prices have jumped in the overnight Global Dairy Trade (GDT) auction, breaking a five-month negative streak.
Alliance Group chief executive Willie Wiese is leaving the company after three years in the role.
A booklet produced in 2025 by the Rotoiti 15 trust, Department of Conservation and Scion – now part of the Bioeconomy Science Institute – aims to help people identify insect pests and diseases.

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