HELI-MULCHING

We operate the only heli-mulcher in Aotearoa, New Zealand.

Pioneered by Southern Heli Lift Chief Pilot Darren Davison, its design and development was fast-tracked during the Covid lockdown of last year, bringing to life a concept he’d been mulling over for years.

It’s slung under the helicopter, which descends, mulching the tree in a matter of seconds. From there, the unit’s spray system kicks in, administering herbicide to completely cover the remaining stump.

The mulcher provides an eradication alternative when other methods are unsafe, too expensive, or will damage surrounding native vegetation.

As far as we can establish, this is the only aerial mulching-spray unit of its kind internationally.

Our heli-mulcher was born of Darren’s years flying over the backcountry, spotting remote, hard-to-reach invasive trees threatening the surrounding native landscape and, in many cases, near-on impossible to selectively target.

Darren, who’s specialised in wilding pine eradication for more than 12 years, designed the mulcher to answer some of the biggest challenges: safety, cost, accessibility and effectiveness.

A pioneering solution

Heli-mulcher's advantages

It's efficent and cost effective.

Rather than the time, resources and other factors involved with ground crews walking in to fell trees, in many instances, the heli-mulcher is significantly quicker, more cost-effective and safer.

It kills invasive trees outright.

A full circumferential hit is needed to kill a tree. In trying to achieve this with traditional spraying, nearby natives are often accidentally sprayed. It’s not uncommon for parts of the invasive tree’s trunk to be missed, so it continues to grow, thereby defeating the purpose. With our heli-mulcher, it’s a case of do it once, do it right: mulched, sprayed, gone.

Aesthetics.

Sprayed trees leave a rust-coloured eyesore on hillsides for decades, which can also pose a major, long-term fire hazard. The mulcher takes trees down to their stumps, just centimetres high. The only debris left are woodchips.

Chief Pilot Darren Davison provides a close-up look at our groundbreaking heli-mulcher.

We operate the only heli-mulcher in Aotearoa, New Zealand.

Pioneered by Southern Heli Lift Chief Pilot Darren Davison, its design and development was fast-tracked during the Covid lockdown of last year, bringing to life a concept he’d been mulling over for years.

It’s slung under the helicopter, which descends, mulching the tree in a matter of seconds. From there, the unit’s spray system kicks in, administering herbicide to completely cover the remaining stump.

The mulcher provides an eradication alternative when other methods are unsafe, too expensive, or will damage surrounding native vegetation.

As far as we can establish, this is the only aerial mulching-spray unit of its kind internationally.

Our heli-mulcher was born of Darren’s years flying over the backcountry, spotting remote, hard-to-reach invasive trees threatening the surrounding native landscape and, in many cases, near-on impossible to selectively target.

Darren, who’s specialised in wilding pine eradication for more than 12 years, designed the mulcher to answer some of the biggest challenges: safety, cost, accessibility and effectiveness.

Heli-mulcher's advantages

It's efficent and cost effective.

Rather than the time, resources and other factors involved with ground crews walking in to fell trees, in many instances, the heli-mulcher is significantly quicker, more cost-effective and safer.

It kills invasive trees outright.

A full circumferential hit is needed to kill a tree. In trying to achieve this with traditional spraying, nearby natives are often accidentally sprayed. It’s not uncommon for parts of the invasive tree’s trunk to be missed, so it continues to grow, thereby defeating the purpose. With our heli-mulcher, it’s a case of do it once, do it right: mulched, sprayed, gone.

Aesthetics.

Sprayed trees leave a rust-coloured eyesore on hillsides for decades, which can also pose a major, long-term fire hazard. The mulcher takes trees down to their stumps, just centimetres high. The only debris left are woodchips.

A pioneering solution

Chief Pilot Darren Davison provides a close-up look at our groundbreaking heli-mulcher.

We operate the only heli-mulcher in Aotearoa, New Zealand.

Pioneered by Southern Heli Lift Chief Pilot Darren Davison, its design and development was fast-tracked during the Covid lockdown of last year, bringing to life a concept he’d been mulling over for years.

It’s slung under the helicopter, which descends, mulching the tree in a matter of seconds. From there, the unit’s spray system kicks in, administering herbicide to completely cover the remaining stump.

The mulcher provides an eradication alternative when other methods are unsafe, too expensive, or will damage surrounding native vegetation.

As far as we can establish, this is the only aerial mulching-spray unit of its kind internationally.

Our heli-mulcher was born of Darren’s years flying over the backcountry, spotting remote, hard-to-reach invasive trees threatening the surrounding native landscape and, in many cases, near-on impossible to selectively target.

Darren, who’s specialised in wilding pine eradication for more than 12 years, designed the mulcher to answer some of the biggest challenges: safety, cost, accessibility and effectiveness.

A pioneering solution

Heli-mulcher's advantages

It's efficent and cost effective.

Rather than the time, resources and other factors involved with ground crews walking in to fell trees, in many instances, the heli-mulcher is significantly quicker, more cost-effective and safer.

It kills invasive trees outright.

A full circumferential hit is needed to kill a tree. In trying to achieve this with traditional spraying, nearby natives are often accidentally sprayed. It’s not uncommon for parts of the invasive tree’s trunk to be missed, so it continues to grow, thereby defeating the purpose. With our heli-mulcher, it’s a case of do it once, do it right: mulched, sprayed, gone.

Aesthetics.

Sprayed trees leave a rust-coloured eyesore on hillsides for decades, which can also pose a major, long-term fire hazard. The mulcher takes trees down to their stumps, just centimetres high. The only debris left are woodchips.

Chief Pilot Darren Davison provides a close-up look at our groundbreaking heli-mulcher.

SAFETY
Our rigorous commitment to, and investment in, safety – both in the air and on the ground – is uncompromising.
LEARN MORE
NEWSROOM
Your bird’s-eye view: We enjoy keeping our clients, project partners, suppliers, and other friends of our company up to date, providing an informative, interesting, and spectacularly scenic window to our work.
LEARN MORE
WELCOME
The Southern Heli Lift story begins with one of aviation’s legendary workhorses: the Bell UH-1L – an Iroquois or “Huey”, as it’s better known.
LEARN MORE
HEAVY LIFTING + HELI-LOGGING
Thumper has a maximum lift weight of 1800kg, and can hoist over half a tonne more than any other South Island-based helicopter.
LEARN MORE
AGRICULTURE
Southern Heli Lift’s rural roots run deep and strong.
LEARN MORE
FIREFIGHTING
Our aerial firefighting experience includes some of the largest wildfires in our country’s recent history.
LEARN MORE

SAFETY

Our rigorous commitment to, and investment in, safety – both in the air and on the ground – is uncompromising.
LEARN MORE

NEWSROOM

Your bird’s-eye view: We enjoy keeping our clients, project partners, suppliers, and other friends of our company up to date, providing an informative, interesting, and spectacularly scenic window to our work.
LEARN MORE

WELCOME

The Southern Heli Lift story begins with one of aviation’s legendary workhorses: the Bell UH-1L – an Iroquois or “Huey”, as it’s better known.
LEARN MORE

HEAVY LIFTING
+ HELI-LOGGING

Thumper has a maximum lift weight of 1800kg, and can hoist over half a tonne more than any other South Island-based helicopter.
LEARN MORE

AGRICULTURE

Southern Heli Lift’s rural roots run deep and strong.
LEARN MORE

FIREFIGHTING

Our aerial firefighting experience includes some of the largest wildfires in our country’s recent history.
LEARN MORE

CONTACT US

CHIEF PILOT | DARREN DAVISON

CHIEF EXECUTIVE | LYNDA DAVISON

The Black Hangar
Rangiora Airfield
Merton Road
Rangiora
Canterbury, 7471

We'd love to hear from you.

CHIEF PILOT
DARREN DAVISON

Phone 027 243 6141
darren@southernhelilift.co.nz

CHIEF EXECUTIVE
LYNDA DAVISON

Phone 027 632 2893
lynda@southernhelilift.co.nz

The Black Hangar
Rangiora Airfield
Merton Road
Rangiora
Canterbury, 7471

We'd love to hear from you.

CHIEF PILOT | DARREN DAVISON

CHIEF EXECUTIVE | LYNDA DAVISON

The Black Hangar
Rangiora Airfield
Merton Road
Rangiora
Canterbury, 7471

We'd love to hear from you.

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