Trial Work

TMC enviro is committed to ongoing research and trial work to provide cutting edge technology and methods to our clients.

We actively pursue new opportunities and developments, such as the EcoBlade, to enhance our range of environmentally friendly services.

As part of this commitment, we research and establish trial sites for our machinery and any new proposed methodology.


Devil’s Rope Trial Site

Weed Control Vegetation ManagementDevil's Rope cactus vegetation management pest plant controlDevil's Rope cactus vegetation management pest plant control

TMC enviro are currently developing a management plan for a trail site near Ouyen, in northern Victoria. The site is heavily infested with Devils Rope, an invasive cactus species which can grow to 3m tall.

The land owners are unable to control the existing infestation, which measures up to approximately 3m high in some patches, and have instead just been trying to contain the spread of the infestation.

TMC enviro are currently proposing a holistic approach to the control of Devils Rope in the form of using ground staff to lop limbs off using pole-saws and feeding the limbs into a high speed chipper. Utmost care will be taken by ground staff to pick up any fragments to prevent further spread of the cactus. The cleared area will then be treated with herbicide to prevent regrowth.

Monitoring and follow up of the site will be essential for long-term rehabilitation.

To our knowledge, using a high speed chipper for the control of cacti has only previously been used on infestation of Wheel Cactus and Prickly Pear.

The theory behind the use of a high speed chipper is to completely destroy the cells of the plant, therefore preventing its regenerative capacity.


Hudson Pear Trial Site

TMC enviro

The southern-most infestation of Hudson Pear in Victoria was officially recorded in 2012. Control works have run for the past two years across the 70ha site, which changed from the odd plant, to a densely infested area after the 2011 floods.

Hudson Pear is a hard to kill plant, with amazing regenerative capacity and ability to spread. It poses significant threats to human and animal health, with large spines capable of penetrating a car tyre covering the entire plant.

Areas densely infested with Hudson Pear are difficult to treat, due to safety issues and access to all plants.

Given the density of the infestation, TMC enviro established a trial site to determine the best method of control for Hudson Pear. Methods were chosen through currently used practices and consultation with DEPI.

Methods for the trial were:

  • Spraying only
  • Burning to remove the spines, then spraying
  • Physical removal, spraying, and burying

It was found that the combination of removing the plants, and spraying them in a hole, then burying them was the most efficient way to control Hudson Pear at the site.

Burning was the least effective, with plants only partially destroyed, and capable of growth and forming new plants.

Follow up control is essential for any pest control program, but more so with species like Hudson Pear, which can spread when any part of the plant comes into contact with the ground. Treatment of juvenile plants is essential in creating long term control of Hudson Pear, and TMC enviro will continue to work with the relevant Landcare Groups to control the infestation and prevent further spread.