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Weeds
Roughly divided, there is seed weeds and root weeds. Seed weeds die almost immediately when you process it. Root weeds however, have an established root where the vitality is, which means that it continues to grow after the treatment and soon rears its green leaves above ground again. Although seed weed is easier to kill, it can be at least as big a problem as root weed. Poa annua is  such an example which has a wonderful time on gravel surfaces. They spread quantities of seeds that constantly grows thousands of new seedlings as soon as the weather permits. The root of the root weed, for example on couch grass and dandelions is growing fast to reach far into the ground. They are therefore difficult to eradicate.
 
From the "track of growth - sustained weed control on hard surfaces". Written by Hakan Schroeder and David Hansson, the researchers we Agricultural University Department of Landscape and Gardening Technology at Alnarp. The book can be ordered by Svea Tools -
Treatment of weeds
Most of us people are basically lazy and want  the weed jus to lay down and die, but unfortunately this is only wishful thinking. Without the strong chemicals that currently prohibits, we must all realize that during every summer in the future requires between 4-8 treatments in order to maintain a reasonably weed-free surface, depending on weed pressure and the weather. This is regardless of method. Therefore, it will become even more important to have fast, efficient and ergonomic tools.
 
Mechanical weed control, used in three ways.
1st Cutting off the plant. When doing this, it is important to cut the plant below the growing point. Wich is the point on the plant where it grows out of. If you cut the plant above the growing point the plant will continue to grow and expand.
2nd Pulling up plants by the roots. It is the most time consuming method when you have to do this by hand.
3rd Cover the plants so that no light reaches them. All plants require sunlight to grow.
 
Thermal weed control: The fastest method
The approach is that it quickly heats the green plant. The fluid in the cells expands when heated and burst the cell walls. The plant can no longer take up fluid and nutrients and dies. Some weeds die immediately after treatment, while others survive. These weeds require repeated treatment. Do not give up - be patient.

"Previously, almost all weed control on hard surfaces with chemical pesticides in Sweden. As in recent years, increased environmental awareness, the use of chemical pesticides reduced. (...) Is the municipal managers rely on only thermal and mechanical methods. The cost of weed control has increased dramatically, in some places at five times, not only because the alternative methods are more expensive and less effective in itself, but also on the knowledge of how to use them in many places are inadequate. "

Be sure to get the right information on heat treatment when it is the fastest method for weed control today. (Own comment)

From the "Track of growth - sustained weed control on hard surfaces". Written by Håkan Schroeder and David Hansson, the researchers at the  Agricultural University Department of Landscape and Gardening Technology at Alnarp. The book can be ordered by Svea Redskap -info@svearedskap.se

H14 och R6
Svea Wheel hoe
Dandelions