Millions of tons of salt are applied to roads to keep them safe for travel. Salt is also spread on driveways and sidewalks to avoid pedestrian injuries. However, the damage salt causes to trees could lead to permanent decline and death.
Salt runoff increases the salt levels in the soil. The main damage is due to toxic quantities of sodium and chloride in the salt. Salt deposits migrate to the stems, buds, and roots of trees and shrubs. This causes disfigured foliage, stunted growth, and severe decline in tree health. As a result the root system grows weak, reducing their ability to fight disease. Even severe salt damage may not cause visible effects until the end of summer or in some cases may not be noticeable for several years.
Trees take years to grow and provide numerous benefits. Simple precautions can help improve the chances of their survival. Care for your trees for a better future.