Å UMARSKI LIST 1-2/1988

Spaić, I.: Iz povijesti zaštite šuma na području Jug. Slavonije. Zbornik o stotoj
obljetnici šumarstva Jug. Slavonije Vinkovci — SI. Brod 1974.
Vajda, Z.: Uzročnici sušenja slavonskih šuma. Zbornik o stotoj obljetnici šumarstva
Jug. Slavonije. Vinkovci — SI. Brod 1974.
Forest Dieback in the Region of South-eastern Slavonia
Summary
The first part deals with the development of stands in the area of south-
-eastern Slavonia from the beginning of this century. A special account is given
of the catastrophic oak-tree dieback during the 1910—25 period and elm tree
dieback in the period from 1930s to the end of the Second World War, when
more than 2 million m 3 elm tree died or were felled due to disease.
Since 1950 all diebacks have been continuously registered in the area managed
by »HRAST« Vinkovci, and the former »HRAST« Forestry Enterprise, Vinkovci.
During this period of 36 years a total of nearly 1.3 million m 3 volume of
wood — predominantly pedunculate oak, elm and slightly less ash — were destroyed
by dieback. Elm definitely ceased to be an economical species and at present it
can be found only in regenerated forests, but is fast deteriorating.
In spite of a considerable amount of wood volume felled due to dieback, the
present condition of stands in most areas is very good thanks to correct silvicultural
interventions and a well organized diagnostic-prognostic service for forest protection.
The former main noxious insects of these forests the gipsy moth, brown-tail
moth, are now less significant, as most damage is caused by the oak leaf-roll
moth and winter moth on oak and the ash borer on ash.
Intensive construction of forest communications and making lanes with wide
light belts essentially disrupted the ecological stability of these forests and contributed
to the intensified activity of early noxious incests on the oak.
The possible construction of the Dunav—Tisa canal and raising of the ground
water level would disrupt the relation between plant communities in this region
and with this the stability of productive capability of these forests.
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