Have you noticed the leaves on your aspen turning brown around the edges and dropping early? Many woody plants have experienced similar symptoms during this hot, dry summer. The problem is leaf scorch, which is caused by the lack of water. But that doesn't mean adding water will necessarily fix the problem. Any factor that damages roots can cause scorch, since poorly functioning or non-functioning roots can't absorb water well. Factors that cause scorch, in addition to the lack of water, include poor plant location (near or in concrete, rock or asphalt), excess water, compacted soil; root competition between trees, shrubs, and turf; lack of winter water and excess fertilization.

To help prevent scorch, improve the vigor of your trees throughout the year through proper watering, fertilizing, and pruning.

Photo: Judy Sedbrook

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