Japanese Maple - Leaves Curling

nancyd(5/Rochester, NY)July 6, 2009

We have had a lot of rain here in the Northeast all spring/summer. My Japanese Maple has been in the ground about 4 years and was probably 3 feet high when I bought it. Just a few days ago all the leaves have curled up. They've not turned any colors yet, just curled up. I don't see any insect issues. I've got lots of hostas planted around the base of the tree and they've been there since I planted it and have never caused a problem. Should I remove the hostas? Or do you think this problem is caused by all the rain? Thanks.

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If your maple tree has Sooty mold it feeds on the sticky substance (honey dew) left by aphids and scale insects. I think it may be the cause of the curling leaves. It can be treated easily.

    Bookmark   July 12, 2009 at 5:56AM
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Does the tree get full sun? I know we've had a lot of rain and not much sun, but Japanese Maples seem to be prone to scorching in this area. If they are turning black-ish and curling it might be scorch from too much water followed by high heat from the sun.

    Bookmark   July 14, 2009 at 3:40PM
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