Cowi has provided figures for four solutions, including hot water, foam, and gas.
This is the result of a study carried out by Cowi at the request of the Danish Association of Landscape Gardeners. It also shows that technological development has promoted new pesticide-free methods that come close to the same performance as pesticide treatment in a number of treatments and prices, but there is still a long way to go, especially in energy and CO2.
4 solutions, energy consumption & CO2.
The study included four technologies, each of which was represented by a brand name
- Foam, Spuma from Aquila Triventek, self-running.
- Hot water, Heatweed Technology, self-running.
- Gas burning, Envo Dan, tractor-mounted. (page.34-35)
- Pesticide, Weed-It from Brøns Machine shop, sensor-controlled, tractor mounted
Cowi A/S, Ministry of the Environment (2021):
Note on technology, climate, etc. by
treatment without pesticides.
Bente Mortensen (2018): Many stories, but too little knowledge. Green
Environment 5/2018 pp. 56-57. (Study for municipalities )