Maple tree leaf browning, curling - Knowledgebase Question

San Antonio, Te
Question by joe050
November 23, 2009
10 yr old tree, transplanted about 5 yrs ago, only about 10 ft tall, was flourishing, San Antonio area, survived the record drought, still has all leaves but most now curling and turning dark brown from outer edge in, covering majority of leaf, not all. ???

Answer from NGA
November 23, 2009


Maple Leaf Scorch is a common problem with maples. It's environmental; when drought or heat stresses the tree, not enough water reaches the leaf margins to keep up with transpiration. Or, the symptoms can be from from overfertilization and too much salt has been translocated to the leaf margins. Since you've describe a droughty summer, I suspect the problem is due to that rather than overfertilizing. Next years leaves should be normal and healthy. Hope the drought is over for good!

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