Thermal Weed Control


Ripagreen Thermal Lances

Hoaf Thermal Weeding systems

Tractor mounted thermal weed control

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Thermal Weed Control Technology


The use of heat to control unwanted plant growth has been around for many years and was certainly in use before the widespread use of inorganic chemicals. A common misconception is that the plant has to be visibly scorched before it will suffer. The fact is, a plant leaf only has to be briefly exposed to a temperature of around 80°C to suffer terminal damage.

This exposure to severe heat bursts the cells in the plant leaf. This in turn renders the plant incapable of converting light energy in to chemical energy (Photosynthesis) effectively causing starvation.

Further thought and research on this subject will reveal this method is most effective on young, fleshy, hungry plants rather than old established woody plants, which may have sufficient amounts of stored energy in their stems and roots to overcome temporary food shortages.

The Ripagreen technology utilises simple propane gas combustion alongside a natural air pressure differential effect (venturi) to surround the targeted weed with a high velocity of heated gas (air). The large amounts of air being passed through the lance ensure that the lance is safe to touch. This patent-ed technology ensures maximum effect using the minimum amount of fuel.

The innovation and goal to make this an effective weed control solution does not end there. Ripagreen have developed every detail of their products to be simple to use and comfortable to operate. Operator effort, fatigue and discomfort is reduced to an absolute minimum when the unique Ripagreen units are used.

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