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5
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!
5.2.3
Finger pressure test
The working speed is strongly determined by the nature and density of the weeds
and the weather conditions. It is useful to carry out a finger pressure test from
time to time during treatment, and to determine the results.
You take the leaf from a weed between
your thumb and index finger, and apply a
light pressure.
• If a dark green stain becomes visible,
and the area you applied pressure on
feels wet, the plant has been reached
effectively, and the working speed has
been chosen correctly. In addition to
this, the plant is visibly weaker.
• If there is no dark green discolouration,
the machine was driven too fast.
• If the weeds are blackened or charred,
the machine was driven to slowly.
28 Operation
User manual
HOAF WeedAir® 50/75i
Chapter 5 - Operation
Afb. 5-1: Finger pressure test
Version date: 2 July 2020
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