What should you look for in your roadside trees? The most obvious symptom of Magnesium Chloride toxicity is burnt leaf margins. The burned area will be brown and dry, and will spread inward to the center of the leaf over time, eventually killing the leaf entirely. Over time, early leaf drop will cause decline in the tree as it won’t be able to produce the sugars needed for growth, maintenance, and reproduction.
How can you protect your trees from Magnesium Chloride toxicity? If you’re deicing your own personal walkways, choose a product that doesn’t contain -Chloride compounds. If your trees are planted along a roadside, consider wrapping young trees in winter, or laying down straw or putting up a fence to prevent external contact via drift. Actions that can be taken any time of year include maintaining a proper irrigation and pruning schedule to promote vigor and vitality. Another great option is regular Aerated Compost Tea treatments, which helps improve soil structure and composition, and can help bolster root zone health and functionality.
You may not have control over which chemicals come into contact with your trees when, but proper planning, including regular tree care and preventative measures, can help your roadside trees withstand the effects of Magnesium Chloride toxicity.