Red Cutleaf Japanese Maple

[spiffy]

Hi,
I'm feeling sad and worried about my red Japanese Cutleaf Maple. I've had it for years (It's about 4 feet tall and 6 feet wide), and about a week ago, all its leaves began to curl under. There is no obvious insect presence or disease. There's no discoloration along the leaf margins, and no leaves are falling. I made a small cut through the bark of a branch and it seems alive and well.
Here in Tarrytown, NY, we had a very rainy June, a hot July and a hot humid and rainy August.
Any idea what's wrong with my tree? I don't want to sit back and watch it die, if that's what's happening.
Thanks in advance.
Linda

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[Stumper]

How moist is the soil around the tree? You say that you had a humid August-was the soil very wet for an extended period?

 

[John Paul Sanborn]

The drainage issue is the first thing I would look at too. Many maples do not like to have "wet feet". Acer palmatum is one that needs well drained, moist soil.

 

[Stumper]

True Dan but since Spiffy says that there is nothing happening to the leaf margins other than overall wilting I'm inclined to think that there is something other than a Fungal or bacterial systemic infection.

Spiffy, Can you post a picture of your Maple?