North American Fruit Explorers mailing list at ibiblio

[tanis cuff <tanistanis@hotmail.com>]

Maybe it's the poor sandy soils here, but blackberries usually don't grow 
wild in the black walnut sites, while black raspberries do.
 
sWI, plenty blackberry canes but not much fruit

----------------------------------------
> From: Jwlehman@aol.com
> Date: Thu, 13 Oct 2011 08:28:02 -0400
> To: nafex@lists.ibiblio.org
> Subject: Re: [NAFEX] Juglone toxicity (black walnut effect these?)
>
> Steve,
>
> I forwarded your question to Jim McKenna who is a Juglans and chestnut
> breeder and developer who works for a joint Purdue-USDA hardwood improvement
> project located at Purdue Univ. You would have met him at the fall INGA 
> meeting
> you attended, except his personal schedule kept him home.
>
> His answers are in bold blue.
>
> > Will juglone toxicity from walnut, particularly black walnut (Juglans
> > nigra) effect any one or more of the following specific plants?
> > Rosacea - (native and European) plum &cherry YES; quince YES; rose NOT
> > SURE; juneberry/serviceberry NOT SURE; strawberry NOT SURE; raspberry &
> > blackberry NO
> > Ebenacea - native persimmon NO
> > Ericacea - blueberry; huckleberry; native rhododendron spp.; mountain
> > laurel NOT SURE on any of these
> > Cornaceae - flowering dogwood; bunchberry NOT SURE
> > Caprifoliaceae - honeyberry NO; native honeysuckle spp. NO
>
> __________________