posted
I was wondering about Leaf Scorch on Maples. We have a 15ft. Sugar Maple that, at this time for the last few yrs, the leaves at the top become scorched and shriveled up. I have heard this is because of lack of water. Does anyone have any more insight on this? I hope it doesn't kill our tree. Thanks for the help! Greg
* * * * In the midst of the storm..I find the greatest Peace. I don't know what tomorrow holds..but i know Who holds tomorrow. Plants: 208 | From: Northern Illinois | Registered: Apr 2003
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posted
Trees do not usually die from a true leaf scorch. Meaning, the result of inadequate water supply to the leaves. Leaves are cooled by water evaporation or transpiration. The water lost due to evaporation must be replaced by water uptake to the leaves. If there is imbalance, the leaves will curl up as a defense to conserve water, if there is not enough water, the leaves dehydrate. A symptom of leaf scorch you may see is browning of the leaf margin, then the entire leaf wilts and die. Browning could also be caused by the presence of salt. If you suspect salty soil, salt will usually leach (wash away) with heavy watering.
Keep your tree watered to the roots especially during very hot weather. Mulch to conserve moisture.
Note: On Leaf Scorch Disease
Leafhoppers transmit a blight called leaf scorch. Not sure if this disease is happening in your area yet or not. A while back, this disease was confined to Southern California only. This one is fatal to the trees or plants. (Sunset Western Garden Problem Solver)
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