2008’s severe drought damaged root systems; symptoms (sparse, discolored foliage) appeared spring 2009. Cherry (already short-lived) succumbed; oaks and dogwoods are stressed but alive.
Fall fertilization boosts root recovery; spring fertilization supports foliage. With normal rainfall, canopy density should return by 2010.
Micro-site differences (soil depth, drainage, compaction) explain why adjacent trees respond differently.
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