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  • From: Scott Smith <scott@cs.jhu.edu>
  • To: North American Fruit Explorers <nafex@lists.ibiblio.org>
  • Subject: Re: [NAFEX] Bark Grafting on non-dormant persimmon trees
  • Date: Fri, 13 May 2011 09:24:10 -0400

Wow, starting on June 1 is quite late! It is clear I have been too early.
Fortunately I did all the grafts at about 3' high so for the failed ones I
just chopped off the top and regrafted with bark grafts; the bark was
slipping well in all cases.

Scott z7 MD

On May 13, 2011, at 9:03 AM, Jwlehman@aol.com wrote:

> In a message dated 5/12/2011 3:40:08 PM Eastern Daylight Time,
> scott@cs.jhu.edu writes:
>
>> I have a somewhat related question, about as in persimmon grafts. I have
>> had inconsistent results over the years and now I am thinking I am
>> grafting too early perhaps. I did the grafts this spring when the new
>> shoots were
>> maybe 1" long. On the bark grafts the bark was not slipping well yet
>> which is one reason why I am wondering if it was too early. What shoot
>> length
>> is best for persimmon grafts? Some of my persimmon grafts did work, they
>> were bark grafts; all the wedge and cleft grafts failed. I am going to
>> only
>> do bark grafts from now on persimmons. All of my other grafts worked well
>> this year, it is only persimmons I am having problems with now.
>
> Hello Scott,
>
> Yes, you were too early to achieve best results. Generally 1 inch of new
> growth the bark should be slipping well. However I believe can vary
> depending
> on soil moisture. Suggestion, cut off the tree maybe two branches above
> where you wish to graft. If that area is slipping well then move down to
> where
> you wish to make the final graft. If not wait another week, cut off further
> down and test again.
>
> One reason for cleft graft failures is the very low area of cambium to
> cambium contact. I no longer use it for any species! Failure rate is too
> high.
>
> Also something I noticed in American persimmon. The trees don't seem to
> heal well in the bottom maybe 12 inches and my success rate works best when
> grafting 18 inches and higher. I no longer graft persimmon less than 12
> inches
> above the ground level.
>
> Another note, here in Indiana persimmon remains in the slip until about
> July 1, don't get in a hurry. But if one waits until near the end of the
> active
> growth period you lose growth of the grafted material. I generally don't
> start grafting persimmon until June 1.
>
> Jerry
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