To: Hector Black <hblack1925@fastmail.fm>, North American Fruit Explorers <nafex@lists.ibiblio.org>
Subject: Re: [NAFEX] question about heartnuts..
Date: Thu, 10 Feb 2011 08:14:23 -0600
What's witches broom? Never heard of it...
On Thu, Feb 10, 2011 at 8:06 AM, Hector Black <hblack1925@fastmail.fm> wrote:
> Hello Amelia,
> Just one caution about heartnuts. I had witches broom which started in
> one tree with branches just above a thornless blackberry and spread to the
> whole grove of 8 trees. I don't know much about this disease or how it is
> transmitted, (I suspect it is transmitted by sucking insects) but it
> appeared to come from my blackberries to the heartnuts. On the heartnuts I
> got whole bunches of small branches growing out of the larger branch and an
> almost complete stop in nut production. I cut down the trees. They
> sprouted and the sprouts looked good for two or three years, vigorous and
> healthy, but then the witches broom started infecting them again. I noticed
> it in one black walnut and cut it down. Now I have no heartnut and no
> witches broom. The heartnuts were seedlings, not grafted, for what that's
> worth. Hector Black, zone 6 middle tn
Re: [NAFEX] Canadian haskaps now in US
, (continued)