Version date: February 13
th
, 2017
30 Operation
5
User instructions
HOAF thermHIT® 75M/100M/125M
Chapter 5 - Operation
5.2 General
5.2.1 Types
of
weeds
Most grasses, annual or bi-annual plants and young plants of perennial weeds can
be destroyed in two to three treatments. A few grasses and permanent plants
such as plantain, redshank and clover may require up to six treatments.
Deep-rooting plants such as dandelions, thistle, sorrel and couch grass may be
able to use nutrient reserves in their root stocks or peg roots to resurface again
after six treatments, and must therefore be treated intensively during two to three
growth periods.
About 65% of the seed above ground is damaged to such an extent that it will
no longer germinate. The preventative effect of every Infraplus® treatment is the
partial cause for a sustained reduction of the weeds.
5.2.2 Determining the moment of the treatment
In order to determine the most appropriate moment for treatment, the surface that
is to be treated must be carefully considered, in addition to the weather conditions
and the growth power of the plants.
Particularly during the first year of treatment, the time intervals between repeats
must be as short as necessary to hardly give the weeds a chance to recover. The
quicker you can "starve" a plant, the sooner you get (nearly) clean surfaces.
Newly laid or refurbished terrains must be treated as soon as weeds become
visible (1-3 cm high), as the young new plants are extremely vulnerable and
therefore easy to destroy. A final treatment towards the end of autumn also has
a very positive effect. This means the plants weakened further, at a time of
limited growth.
Note! Never carry out a treatment in places with
leaves!