When to start bagging grapes?

mrsg47(7)August 4, 2014

Last year I bought 'organza' bags to cover my Concord grapes. The birds could see right through the bags, and pecked right into them, making a mess.

I ended the situation by unfortunately picking the grapes when they were purple but not fragrant nor fully ripe. The jam was horrible. Threw it out.

This year I took Scott's advice and bought cotton muslin bags that will not only protect the grapes they will be hidden from sight by the cloth. My Concords are now green but the grapes are swelling quickly and are almost the size of a dime. Is it too early to bag them? thanks, Mrs. G

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glib(5.5)

Yes. They have to at least change color.

    Bookmark   August 4, 2014 at 2:41PM
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Fascist_Nation(9b)

Grapes are not dependent upon light exposure for color change.

You could bag them any time but keep in mind if it rains--depending upon your area--you could have mold problems with a wet bag around them. I have not noticed birds bothering the b-b sized grapes only the ones as they near maturity.

    Bookmark   August 4, 2014 at 3:33PM
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mrsg47(7)

I'll wait a little longer. Thanks all! Mrs. G

    Bookmark   August 4, 2014 at 3:39PM
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Scott F Smith(6B/7A MD)

Don't wait too much longer. I looked at my grapes yesterday and the birds had taken most of them already.

Scott

    Bookmark   August 4, 2014 at 8:20PM
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mrsg47(7)

Thanks Scott!

    Bookmark   August 4, 2014 at 9:29PM
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myk1(5 IL)

I used gallon ziplocs with the bottom completely opened. They didn't completely stop the squirrels but did seem to frustrate them. Didn't notice any birds pecking which is odd because they do with apple bags.
I put them on pretty early, way before I started seeing losses.

    Bookmark   August 5, 2014 at 1:43PM
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mrsg47(7)

I've only used baggies on apples. I'm trying the cotton muslin bags for the first time. My mailman thinks I'm a riot! Bags hanging on a grape arbor. . . Mrs. G

    Bookmark   August 5, 2014 at 6:41PM
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myk1(5 IL)

If people only knew.

Half my grapes were killed last winter, all were killed off to the ground so I don't have anything this year. Looking good for next year though (I have a new plan, temporary low tiers until they get thick when I'll let them go to the high tier).

I've seen one house around here that has whole trees bagged with some kind of fabric.
I've got some netting and am thinking up something like that for the grapes. At least make the squirrels do some acrobatics to get to them.

    Bookmark   August 6, 2014 at 12:07PM
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Konrad___far_north(3..just outside of Edmonton)

You could use row cover,..or some other fabrics.

    Bookmark   August 6, 2014 at 11:57PM
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