Special machines capable of moving trees up to a diameter of 30cm, independently
of any other assistance.
They perform by themselves:
The principal advantages of this technique are:
The production of the root ball by digging mechanically and manually all around the tree, carefully cutting the roots, then wrapping the root ball in netting. The difficulty is to handle the root ball without causing deformation. It is here that modern methods intervene:
the creation of a rigid platform inserted under the root ball and the lifting
of the whole with large cranes or a system of hydraulic cylinders. The weights
in question may then exceed 200 tonnes.
This technique is reserved for root
balls of a diameter equal to or larger than 3 metres. National Shade, an American
company specialising in this activity, assists us with its techniques and experience.
Traditionally deciduous trees can be transplanted when they are without leaves,
that is from November to March, while conifers can be moved between September
and March. However moving trees can be done all year round, but avoiding the
spring budding period, and in following a strict programme of watering.
Certain evergreens prefer soils warmed from the start of summer, like the palms.
In all cases a preparation of the root system, that is to say, a circular partial
cutting of the roots all around the tree is strongly recommended one to two
years before transplanting.
This ring cutting has the objective of spreading
the period of trauma to which the tree is subjected so as to permit it to react
in the best way.
The rate of success is, all factors taken into account, 85%, despite the small percentage of pre-prepared trees, and aftercare sometimes insufficient.
The factors of success are numerous, but one can take into account principally;
sarl CHT
La Gloriette 38160 Chatte France
telephone : +33(0)232 695 823 - fax :
+33(0)232 695 825
e-mail : We can be contacted
at -
site : www.chtranspl.com
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