Unusual fall color????????????

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Unusual fall color????????????

Post  JimLewis on Mon Sep 26, 2011 8:04 pm

It's neither a pest nor a disease (in the sense of an organism causes it) but here is an example of an unusual case of chlorosis AND fall color in an American red maple seedling that just showed up one day in one of my grow boxes.

At least I THINK it is chlorosis, but the nearby green leaves show no sign of it. (I wonder if it is patentable?)


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Jim Lewis - lewisjk@windstream.net - Western NC - People, when Columbus discovered this country, it was plumb full of nuts and berries. And I'm right here to tell you the berries are just about all gone. Uncle Dave Macon, old-time country musician

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Re: Unusual fall color????????????

Post  Kev Bailey on Mon Sep 26, 2011 11:16 pm

Very similar to my trident autumn colour this year. It's been a weird season here. Early warm spring, cold summer, very warm early autumn. Everything seems confused!

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Re: Unusual fall color????????????

Post  63pmp on Wed Sep 28, 2011 3:20 am

Magnesium deficiency. Shows up in oldest leaves first as magnesium is highly mobile. Also brings on early autumn colors and early leaf drop.

Paul

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Re: Unusual fall color????????????

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