Help identifying pole bean disease or pest

jellytoastApril 24, 2013

Can anyone help me identify what's going on with my Blue Lake pole beans? Squiggly lines indicate leaf miners, but what about the brown, dried out areas? These appear on leaves that have no indication of leaf miner activity.

This post was edited by jellytoast on Thu, Apr 25, 13 at 9:46

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jimster(z7a MA)

The leaves look somewhat chlorotic, i.e. pale green with darker green near the veins. That is probably from a nutrient deficiency, which would be consistent with what appears to be very sandy soil. I suggest applying some fertilizer.

The sandy soil probably is droughty and will require regular watering.

Also, there seems to be leaf miners in several leaves. I have never had those and can't suggest what to do.

Jim

    Bookmark   April 25, 2013 at 9:51AM
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jellytoast

jimster, the soil was purchased from a local nursery this season, formulated for raised beds. While the mix does include sandy loam, It has added compost as well. When I dig down into the soil, it has a nice fluffy texture and is not dry, but not wet either ... slightly damp, I'd say. The plants were fertilized with EB Stone organics for tomatoes and vegetables a week ago. I neglected to fertilize the soil when I planted the seeds.

    Bookmark   April 25, 2013 at 10:08AM
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jimster(z7a MA)

So much for soil analysis by photograph. Scratch the sandy soil theory. :-)

Your recent application of fertilizer may show results soon. I have had a similar phenomenon with newly emerged beans and they outgrew it.

Jim

    Bookmark   April 25, 2013 at 12:24PM
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jimster(z7a MA)

Deleting duplicate post.

Why does this happen? I was even in a different forum when it happened.

Jim

This post was edited by jimster on Thu, Apr 25, 13 at 13:01

    Bookmark   April 25, 2013 at 12:58PM
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jellytoast

"So much for soil analysis by photograph. Scratch the sandy soil theory. :-) "

Jimster, that is not the soil in the beds! I pulled the leaves out and layed them on a bare patch of soil in the yard for the photograph ... :-)

    Bookmark   April 25, 2013 at 10:15PM
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jimster(z7a MA)

I guess that also explains why I see no stems or petioles. DUH!!!

Jim

    Bookmark   April 26, 2013 at 10:55AM
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jellytoast

Well, if it makes you feel any better, your "soil analysis by photograph" was a pretty good call. :-)

    Bookmark   April 26, 2013 at 1:29PM
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