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Re: [nafex] Pear Rootstock

In a message dated 3/12/2002 8:28:17 AM Central Standard Time, 
inter.verbis@atreide.net writes:

> Hi Rob, 
> I am using the wild variety of Hawthorn that grows spontaneously in my part 
> of the world. (Québec, 30 miles north of Ottawa, zone 4 going on 3 as 
> someone described it recently).
> To get back to the original subject of fireblight brought up by Doreen, all 
> I can add is that I have noticed a bit of fireblight last year on some 
> trees grafted on pyrus ussuriensis and none on pear trees grafted on 
> Hawthorn. It is merely an observation though as there are other factors and 
> the experiment started two years ago. In a few years, I will have the same 
> varieties established on both pyrus ussuriensis (is this correct Nathan?) 
> and Hawthorne and then we shall see...
> Hélène

Bonjour Helene,

The major Hawthorne down here in Louisiana is C. opaca, the Mayhaw, Zone 8b.  
I not aware of anyone using it as a pear rootstock, but is a interesting 
prospect.  We do get fireblight on hawthorne down here in some years.  Scales 
are also very serious problem.

Robert M. Turley, M.S.
Extension Horticulturist
Calcasieu Extension Agriculture Center
7101 Gulf Hwy.
Lake Charles, Louisiana  70607-7414

Ph:  337-475-8812
Web:  <A HREF="http://www.agctr.lsu.edu/parish/calcasieu/hort1.htm";>http://www.agctr.lsu.edu/parish/calcasieu/calhort/horticulture.htm</A>

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