Trees in Containers
Thursday, March 2, 2017
By Tree Services Magazine
Many trees planted in containers perform poorly. Some decline rapidly after planting, while others become established, grow and then decline. Symptoms include marginal necrosis of leaves, undersized leaves, leaf drop, slow growth, branch dieback and, in some cases, whole tree death.
What’s causing the problem? Although a number of agents can cause some or all of these symptoms (including salts, specific ion toxicity and root disease), the most common cause is water deficit. Trees in containers are highly prone to water-deficit injury because transpirational water loss can quickly deplete all available water in the container substrate. Without frequent replenishment of available water, injury symptoms appear and tree performance declines.
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