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Salt
 Salt damage has stripped the foliage on the exposed side of the tree |
Air-borne salt can affect trees and palms through twigs and foliage, or through roots after it is deposited on the ground and penetrates into the soil. See: palms impacted by salt spray.
Trees planted within an eight mile of salt water coastlines should possess some degree of tolerance to aerosol salt spray. Those exposed to direct spray along the dunes should be highly salt tolerant.
Salt tolerant trees are often deformed by direct exposure to salty air, but they survive and grow. Foliage on salt sensitive trees burns, and trees become deformed and grow poorly when exposed to salty air.
Trees within several hundred feet of major roadways that receive deicing salt regularly should be tolerant of aerosol salt spray. Those planted adjacent to salted roadways or parking lots should be tolerant of soil salt because salty water splashes or runs off from pavement into the root zone.
