(Cheltenham, UK) DE-ICING/SALTING INJURIES - Commonly used to de-ice highways and pavements. High levels of salt on the pavement drain into the surrounding soil and kill the plant roots. Sodium can be highly toxic to plants, with salt spray significantly damaging plant foliage. Symptoms: Progressive decline in plant vigor, leave become dwarfed and brown with die back and eventual death. http://bit.ly/w7onAC