Mistletoe Infestation as a Transboundary Problem

Abstract

The rapid spread of the hemiparasitic shrub of the European white-berry mistletoe, Viscum album (L.), in the Kaliningrad region is alarming. One of the probable reasons for this phenomenon is global warming. Another factor favourably affecting the development and reproduction of mistletoe is the increase in the number of bird species feeding on it and dispersing its seeds. The lack of a scientifically based and properly organized control against this phenomenon could be regarded as yet another factor contributing to the spread of mistletoe. Moreover, there is no single opinion on the mistletoe effect on woody plants. Therefore, the question arises of the scrupulous study of biology, physiology, aetiology and biochemistry of mistletoe in the Kaliningrad region, along with the issue of mechanical mistletoe removal. In this connection, the experience of neighbouring countries inhabited by the plant and using it for various purposes is of particular interest.