20 year old grape vines produce no grapes

Discussion in 'Grapes and Grape Vines' started by Danny Young, Feb 12, 2007.

  1. Danny Young

    Danny Young Member

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    Location:
    Lexington, SC
    The vines were planted by my father inlaw 20 plus year ago. I am not sure what kind they are, I think concord. The vines look healthy and grow great but produce nothing. Early in the Spring there are lots of little cluster but they never get bigger than a pin head and die. Last year I found less that a dozen grapes. What can I do before this spring starts.

    Danny Young
     
  2. Ralph Walton

    Ralph Walton Active Member 10 Years

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    Location:
    Denman Island,BC
    Prune heavily. Your problem may be that vigorous vegetative growth shades the developing buds and tends to produce vegetative buds as opposed to fruiting buds in the following year.
    See
    http://breeze.ag.vt.edu/westover1/ (and 2 and 3)
    Dormant Grapevine Pruning: Part 1
    This may not help your production much this year, but is you follow thru during the season and allow sunlight into the vine, that will help set productive buds for next year.

    Ralph
     
  3. Danny Young

    Danny Young Member

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    Location:
    Lexington, SC
    Thanks, I will try. I also have the same problem with a wild grape vine I transplanted 10 years ago and is located near my arbor. Any connections?

    DY
     
  4. Ralph Walton

    Ralph Walton Active Member 10 Years

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    If it's growing well, probably the same issue. I think it's related to the tendancy thruout the plant world to increase seed (fruit) production when stressed. The grapevine that is heavily shaded by it's own growth would be justified in "thinking" (I used quotes, so let's not restart that discussion!) that life is good, so why bother making the extra effort to fruit?

    Ralph
     
  5. Danny Young

    Danny Young Member

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    Location:
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    Thanks,
    Danny
     

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