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It is common, for Edmonton Arborists, to see signs of tree stress directly caused by the use of ice-melter and salt in our urban environment. Trees planted and growing closest to walkways and roadways are usually ones that are most affected.
During the winter months, Ice-melter and salt are common products used on walkways, roadways and parking lots, to reduce snow and ice build up in these areas. Although these products have their purpose and place in our urban landscapes, they do have the potential to cause harm if not applied correctly in moderation. Over time the use and applications of ice-melter and salt, can create a toxic environment, within the soil, potentially poisoning the tree or even damaging tree roots.
The harm is done when the chemicals, such as sodium or calcium chloride leach into the soil, and are absorbed by the tree. These chemicals are toxic to the tree, and may cause immediate stress. In many cases, it can take several seasons of salt buildup in the soil, to show tree stress. In extreme cases, these chemicals can “burn off” the absorbing root hairs, which are essential for water and nutrient uptake. Plants will be weakened by the interrupted balance of essential micro and macro nutrients internally, and will begin to show stress and rapid decline. Toxic amounts of salt in the soil eventually can hinder the trees’ ability to absorb enough water to survive.
Use of abrasive material such as sand or gravel for these areas, can be effective. If an ice-melting product is required for safety reasons and to prevent injury for pedestrians or to aid in vehicle traction, then moderation should be practiced when the product is applied. Watering trees extra well in the spring and throughout the summer growing months, can be of help to leach salt away from the tree root areas.
Your Best Arborist in Edmonton, can consult with you regarding your trees and shrubs. And as always, can guide you for the health and maintenance to beautify your landscape.