North American Fruit Explorers mailing list at ibiblio

[Claude Jolicoeur <cjoli@gmc.ulaval.ca>]

Hello Michael,
I have also grafted pear on hawthorn with success, but there seems to be a higher ratio than normal of grafts that die after a year or 2. So I guess that not all pear varieties have the same compatibility with hawthorn. It could also vary with hawthorn species. My oldest graft is 9 years old and fruiting, but the hawthorn is much smaller than the pear at the union.
I also tried in the past some pears on apple: one graft has survived 13 years before incompatibility killed it. But at the end, all these grafts died. I haven't tested the compatibility of Winter Banana with pear, but I have read that it should work.
Last week, I noticed that my young Roxbury Russet is almost dead because of borers - my fault, I didn't check it from close enough. They are really a pest. Like you I have never noticed them in hawthorn, and also never on my pear trees neither. But they seem to really like Mountain Ash.
About hawthorn nomber of species and medicinal properties, I will try to think to give a look at a book I have at my orchard when I will go this week-end.
Claude

A 06:11 00.09.19 -0400, vous avez écrit : 
>>>>
> Hi all,
> Has anyone had experience grafting apple to hawthorn? This part of my question has to do with noticing round-headed appletree borer don't seem to attack hawthorn very readily. Of course if I put apple on top that could well change.
> Secondly, has anyone grafted hawthorn to apple? We'd like to grow more hawthorn for medicinal purposes but I know apple rootstock is much more commonly available. One book I have mentions 100 to 1000 species of hawthorn in North America . . . might anyone out there know if any work has been done to identify species that have greater medicinal potency? 
> Thanks!
>
>
> Michael Phillips
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