North American Fruit Explorers mailing list at ibiblio

[Douglas Woodard <dwoodard@becon.org>]

Yes, quince is susceptible to fireblight. However growing pear on quince 
suppresses secondary blossom in the pear which is a major route of 
fireblight infection here in the Niagara Peninsula.

The reason for my inquiry is that I have noticed a few references to 
lower fruit quality in pear on hawthorn, including in the Pomona over 
the years, though I have no personal experience with it. But there are 
*many* different species of hawthorn.

Doug Woodard
St. Catharines, Ontario, Canada


William McNam wrote:
> Doug Woodard,
>  
> I have grafted pear and quince on hawthorn (Paul's Scarlet...C. oxycantha?)
> The grafts  produced normal-sized fruit .
> The pear grafts have since expired ( scions were not certified 
> virus-free ,or they may have succumbed to graft-incompatibility or decline.
> The quince branch is still doing well.
>  
> There are wild/native hawthorn trees (I don't know the species) here wch 
> are exceptionally drought tolerant.
> So if water is difficult to come by,pear and apples might be 
> successfully fruited on this rootstock with little or no irrigation.
>  Also Quince is very susceptible to*  "fire blight" *if grown under 
> irrigation wch promotes vigorous growth.
>  If you want to do an authentic test,use only virus-free grafting wood.
>  
>  >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>
> --- On *Tue, 3/2/10, Lon J. Rombough /<lonrom@hevanet.com>/* wrote:
>
>
>     From: Lon J. Rombough <lonrom@hevanet.com>
>     Subject: Re: [NAFEX] grafting native crabs
>     To: "North American Fruit Explorers" <nafex@lists.ibiblio.org>
>     Received: Tuesday, March 2, 2010, 5:06 AM
>
>     I haven't noticed anything really obvious.
>     -Lon Rombough
>      
>      >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>     On Feb 28, 2010, at 9:05 PM, Douglas Woodard wrote:
>
>     Lon, have you noticed any difference in fruit quality or production
>     among your pears on pear, quince and hawthorne roots?
>
>     Doug Woodard
>     St. Catharines, Ontario, Canada
>
>      >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>
>     Lon J. Rombough wrote:
>      > I have Bartlett, Fall Butter and Old Home pears on Crataegus
>     douglasii
>      > that are over 40 years old.
>      > -Lon Rombough