The ancient Flaminian Way which enters northern Rome was once flanked by a procession of soaring umbrella pines topped by pillowy green canopies, making it one of the most stunning routes into the city.

However, it has become one of the most depressing ways into the city as the pine tortoise scale insect kills off the trees, turning them into threadbare collections of desiccated branches that recall a Christmas tree found in a rubbish skip in mid-January.