Radionik Verlag - IRT - Treatment of Laxenburg Park

6.3. Treatment of Laxenburg Park (A)

In September 1990 the Regional Government of Lower Austria commissioned the IRT to treat Laxenburg Park near Vienna as part of its project "New Approaches to Environmental Protection".

The Regional Government had two objectives:

1. to revitalise the trees
2. to improve energy levels in the park in order to enhance its recreational value.

Laxenburg is an old imperial park covering 250 ha. It was laid out as a fine landscaped park by Lenné in the last century. Since it is close to Vienna it attracts about a million visitors a year. Some of the trees, which mainly comprise oaks, limes, planes and horse chestnuts, showed signs of severe damage. The damage had increased considerably in recent years.

The impact of the treatment was monitored annually by the Strohschneider Forestry Consultancy at the request of the Regional Government, using the guidelines for the evaluating of tree vitality in Austria.

IRT and the Strohschneider Forestry Consultancy selected nine monitoring points, each comprising five trees. The points and types of tree are representative of the park.

Summary of results after 3 years treatment (Sept. 1990 - Sept. 1993)

Resonance therapy report/4 - Strohschneider Forestry Consultancy, Jan. 1994

The most important yardstick of vitality, the state and shape of the crown, expressed as mean leaf density, shows an improvement of 20.7 % in the vitality of all the trees monitored in Laxenburg in 1993 compared with the situation at the start of treatment in 1990.

The greatest improvement in the three years has been recorded for the lime trees, whose vitality improved by 37.9 %. This is followed by an improvement of 34.4 % for the oaks and 15.4 % for the horse chestnuts. The only type of tree to register a slight loss of a vitality since 1990 has been the plane (-3.3 %).

Equally positive results were obtained for the state of very tops of the trees.
In 1993 the amount of mistletoe observed on oak trees was 30 % lower than in 1992. In all, the amount of mistletoe has dropped by 33.3 % since 1990.

The overall annual increase in the vitality of the oak trees and all other trees monitored by us in Laxenburg Park since 1990 shows:

1. despite adverse climatic conditions, weather and rainfall
2. despite a nationwide decline in the vitality of trees monitored by the forestry monitoring system in 1993
3. despite the gradual deterioration in Austria of oak trees in previous years
4. and given the striking decline in the amount of mistletoe on oaks trees in the park since 1992,

that, the vitality of the trees in Laxenburg Park has been positively influenced since 1990. This cannot be explained by the natural changes of tree vitality.

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