A tree technician Matthias Hower from Germany was visiting us last summer.
He was leading a seminar on tree care and assessment. He shared his experience on how to avoid tree damage during construction works, how to manage aging tree avenues and other examples from his work in Germany.
Participants had an opportunity to work with dendrotomograph. By transmitting and detecting sound signals it allows to obtain a colourful cross-sectional image of the trunk without harming the tree.