Japanese maple was fine last week -- now what the heck is wrong?

jayco(5b NY)May 12, 2012

Went away for a week and today my Japanese maple looks BAD.

It's about 6 years old, around 8 feet tall, never anything but healthy and vigorous. Today was the first time I found it ailing. The other four around it (different cultivars) are all fine.

Any idea what the trouble is and what I should do? Thanks!

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Most likely frost damage, but could also be some kind of (bacterial?) leaf spot, I guess. But, I say most likely frost.

    Bookmark   May 12, 2012 at 9:26PM
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jayco(5b NY)

Oh, thank you, that is something I didn't even consider, but it makes sense. We had that freakish super-early spring with temps 20-30 degrees above normal, and then a few nights of hard frost about 3 weeks ago.

Would it take a few weeks for the damage to show up like that?

Thanks again.

    Bookmark   May 12, 2012 at 9:48PM
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ken_adrian Adrian MI cold Z5

if it stays cool after a frost [days int eh 50's lets say] .. then it might not become 'apparent' .. until the air temps spike.. actually drying the dead tissue ...

its frost damage.. not a secondary leaf spot ...


    Bookmark   May 13, 2012 at 9:11AM
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jayco(5b NY)

Thanks very much, good to know.

Am I correct to suppose there's nothing I can do, and that the tree will just look bad this year, but be fine?

    Bookmark   May 13, 2012 at 11:41AM
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Well, you can go out there with a pair of scissors and cut off the dead tips :-)

    Bookmark   May 13, 2012 at 3:02PM
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jayco(5b NY)

Lucky for me my eyesight is not that good anymore.... ;)

    Bookmark   May 13, 2012 at 6:42PM
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