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Burr knots

Posted by David Doncaster 
Burr knots
April 22, 2014 12:46AM
Looking for some thoughts . Down looking at the nursery getting ready to transplant my new stock . Better then 50% have what I believe are burr knots right at the graft . From what I've been able to find , if I plant them past the graft , the scion may root, so what actually will happen if it does ? What if I plant up the the graft , will I be OK ? Or am I just better off to start from scratch ?

These are mostly heirloom varieties on Bud 118

Hillview Heritage Farm
Zone 5*in British Columbia
Re: Burr knots
April 23, 2014 06:59PM
Since 118 is pretty much a full vigor stock, there will be little difference in the outcome of the tree. What may be of more importance is how high up the union is, since burying trees too deep has been known to kill them. This latter point is more the case in heavier soils, but be careful. I have not had 118 get burr knots as readily, compared to, say bud 9, unless they are covered. Tree guards are notorious for this, but anything that keeps out light and air seems to allow it. The phenomenon is the beginning of root initiation.

Walden Heights Nursery & Orchard
Zone 3 in Vermont
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