Przydatność repelentów w ochronie drzew przed zgryzaniem ich przez bobry

The efficiency in Trees protection against European beaver (Castor fiber) of two different repellents: JTEATON and REPENTOL 6 BIS PA was studied under laboratory condition. Both types of repellents showed no efficiency in willow branch protection against beaver browsing. Willow branches protected by two repellents were damaged in the same level as non−protected branches (control) both under low (1 beaver) and high predation risk (2−4 beavers). Data from this experiment suggest that tested repellents were not efficient in trees protection against beaver.