Bring a bottle: Viennese dog owners told to rinse pets’ urine from trees

Official guidance says ammonia in animal urine should be watered down to stop it corroding bark

A neighbourhood in Vienna has introduced guidelines for dog walking, including the use of bottled tap water to rinse away urine and protect vulnerable trees.

Neubau, an up-and-coming, densely populated district dotted with cafes and galleries, rolled out the Schönes Gassi (nice dog walk) campaign this week.