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bark grafted pecans yesterday, trunks all wet today

Posted by cousinfloyd 7 (My Page) on
Wed, May 1, 13 at 11:14

I topworked two pecan trees yesterday following the example on Bill Reid's blog for a modified rind graft. Today the trunks are all wet below the graft area. Is that a sign that the grafts aren't going to take? Should I take off the coverings and start again a little lower down? Should I leave it be but do something different next time?


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RE: bark grafted pecans yesterday, trunks all wet today

E,
I sometimes get excessive bleeding, flooding the grafts.
Don't know if grafting 'by the signs' would help, but I pretty much have to do 'em when I can steal a few minutes here and there to get out in the orchard.
I've had old-timers recommend beheading the rootstock - and waiting 'til they stop bleeding before grafting - may take one day, or a week or more.
Another technique which I use frequently - though I can't swear that it necessarily works any better - is the 'Sap-stopper modification of the Gray Graft'. Essentially, it's a simple bark graft - but instead of completely beheading the understock, you just cut about 3/4 of the way through and 'break over' the still-attached top, to act as a sap-drawer or 'relief-valve' of sorts.
Did a couple this morning, but it's still a bit early on many of my seedlings - look at Dr. Reid's most recent post.


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RE: bark grafted pecans yesterday, trunks all wet today

  • Posted by fruitnut z7b-8a,4500ft SW TX (My Page) on
    Wed, May 1, 13 at 17:28

In grapes which bleed like bloody Mary, I believe they make a cut below the graft to bleed off the excess sap. That might be worth a try. But I have no real experience on either.


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RE: bark grafted pecans yesterday, trunks all wet today

The guy who taught me to 3-4-flap graft does a couple of incomplete 'girdling' cuts just below the graft - not removing any bark, just a quick couple of knife swipes most of the way around the stem of the rootstock; they callus back across, but I guess also serve as a 'relief' valve of sorts - and probably also help to keep auxins concentrated above the girdling cuts to augment callusing.


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RE: bark grafted pecans yesterday, trunks all wet today

Thank you both for the feedback and advice. Lucky, I grafted a couple black walnuts yesterday and tried doing the 3/4 of the way through and break over still attached thing. Thanks, Eric


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