North American Fruit Explorers mailing list at ibiblio

[Hélène Dessureault <interverbis@videotron.ca>]

This is very helpful indeed. In my area, there is a lot of wild cherries, 
some severely infected with Black Knots and it is nice to know what can be 
done.
Thank you so much for the information.

Hélène, zone 3-4
----- Original Message ----- 
From: <dmnorton@royaloakfarmorchard.com>
To: "North American Fruit Explorers" <nafex@lists.ibiblio.org>
Sent: Saturday, May 09, 2009 11:48 AM
Subject: Re: [NAFEX] Black Knot Question


> Jim,
>
> One of the best cultural practices to keep Black Knot form spreading is to
> prune out the infected branches just like you would with fire blight in
> apples.  All shoots and branches bearing knots should be pruned out during
> the winter when possible. This pruning should be completed before 
> ascospore
> discharge begins in the spring, usually about the time that the buds first
> break. To be sure that even the unseen internal mycelium is removed, the 
> cut
> should be made at least 6-8 in. below the knot. Winter is also a good time
> to look for and remove sources of inoculum in nearby wild Prunus species 
> in
> hedges and woods. The knots are capable of producing ascospores for some
> time after removal from the tree, so they should be burned, buried, or
> removed from the site regardless of the time of year the pruning takes
> place.  Hope this helps!
>
> Dennis Norton
> Royal Oak Farm Orchard
> Office (815) 648-4467
> Mobile (815) 228-2174
> Fax (609) 228-2174
> http://www.royaloakfarmorchard.com
> http://www.theorchardkeeper.blogspot.com
> http://www.revivalhymn.com
> ----- Original Message ----- 
> From: "Jim Fruth" <jimfruth@charter.net>
> To: "NAFEX" <nafex@lists.ibiblio.org>
> Sent: Friday, May 08, 2009 8:28 AM
> Subject: [NAFEX] Black Knot Question
>
>
> >    I frequently don't see Black Knot on my trees until after the fungus
> > has dried.  Will cutting out the infected branches, at the dried stage,
> > stop it from spreading?
> >
> > Jim Fruth
> > Brambleberry Farm
> > Pequot Lakes, MN  56472
> > For jams, jellies, syrups and more:
> > www.jellygal.com
> > 1-877-265-6856 (Toll Free)
> > 1-218-831-7018 (My Cell)
>
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