Todbringende Fegeschutzspiralen?

Fatal spirals for protection against fraying?

Wien

1998

Unselbständiges Werk

12531

200104813

Stem-wounds caused by fraying protection spirals are reported from afforestations of Swiss stone pine (Pinus cembra L.) in the Tyrol, Austria. The main reason were twigs growing through perforations in the spiral preventing its extension. Infections by wound parasitic fungi and insects resulted in the death of the trees.