Skip to Content.
Sympa Menu

market-farming - Re: [Market-farming] black walnuts trees

market-farming AT lists.ibiblio.org

Subject: Market Farming

List archive

Chronological Thread  
  • From: prmsdlndfrm AT aol.com
  • To: market-farming AT lists.ibiblio.org
  • Subject: Re: [Market-farming] black walnuts trees
  • Date: Thu, 01 Apr 2010 07:56:39 -0400

I have black walnuts all around my feilds , as long as Im more than 10 feet from the outside edge of the canopy I have no problem with growing any vegetables except for greens, including lettuce, they seem especialy sensitive. Also blueberries dont seem able to tolerate it either.
Josh



-----Original Message-----
From: Johnathan Yelenick <yelenick AT riseup.net>
To: market-farming AT lists.ibiblio.org
Sent: Wed, Mar 31, 2010 10:43 am
Subject: Re: [Market-farming] black walnuts trees

the Permaculture literature has addressed this issue very well. I would 
suggest looking towards the index of David Jacke's book "Edible Food 
Forests" printed by Chelsea Green. There is a composite of plants 
resistant to juglone.
I know one can use mulberries and elderberies in a guild with Juglans 
nigra (Black Walnut). These plants effectively buffer and partly 
neutralize the allopathic effects of juglone in the surrounding soil 
profile.

Cheers,
Johnathan Yelenick
Blacktail Permaculture Farm
South Platte River Watershed of the Short Grass Prairie Steppe Bioregion

> 
> 
> Bill: Thanks for the reminder -- juglone.  Found some other material from 
Purdue, and other university web sites that say that squash, melons, beets, 
carrots, corn, onions and parsnips are tolerant if you're 50' from the drip 
line.
> 
>  
> 
> Opening some new beds so have to decide if I want to take a chance.  They just 
barely clear the 50'.
> 
>  
> 
> Thanks,
> 
>  
> 
> Elaine
> 
> 
> From: wshoemak AT illinois.edu
> To: market-farming AT lists.ibiblio.org
> Date: Tue, 30 Mar 2010 14:41:58 -0500
> Subject: Re: [Market-farming] black walnuts trees
> 
> 
> 
> 
> 
> 
> 
> 
> 
> Black Walnuts produce a phytotoxin, juglone, which will inhibit the growth of 
many species of plants. Most vegetables can be affected. The high-risk zone is 
anything within 1.5x the drip line. Some think its more because it depends on 
sensitivity/tolerance and movement of walnut debris.
>  
> Bill
> 
> William H. Shoemaker
> Sr. Research Specialist, Food Crops
> University of Illinois - Crop Sciences
> St Charles Horticulture Research Center
> 535 Randall Road, St Charles, IL, 60174
> 630-584-7254, FAX-584-4610 
> wshoemak AT illinois.edu
> 
> 
> 
> 
> From: market-farming-bounces AT lists.ibiblio.org [mailto:market-farming-bounces AT lists.ibiblio.org] 
On Behalf Of E C GRANATA
> Sent: Tuesday, March 30, 2010 2:01 PM
> To: Market Farming
> Subject: [Market-farming] black walnuts trees
>  
> Folks:  I remember that black walnut trees are not friendly to gardens, but 
can't remember particulars.  Can anyone help?  How far from the tree -- from the 
trunk? from the drip line?
>  
> The grass and flowers seem to grow well enough under and around it.  Are there 
certain crops that won't tolerate the tree?
>  
> Many thanks for any help with this.  Almost 80 today, for a change
>  
> Elaine
> Denver, Zone 5ish.                      
> -------------- next part --------------
> An HTML attachment was scrubbed...
> URL: http://lists.ibiblio.org/pipermail/market-farming/attachments/20100330/7347b686/attachment.htm 

> 
> ------------------------------
> 
> _______________________________________________
> Market-farming mailing list
> Market-farming AT lists.ibiblio.org
> http://lists.ibiblio.org/mailman/listinfo/market-farming
> 
> Get the list FAQ at: http://www.marketfarming.net/mflistfaq.htm
> 
> 
> End of Market-farming Digest, Vol 86, Issue 85
> **********************************************
_______________________________________________
Market-farming mailing list
Market-farming AT lists.ibiblio.org
http://lists.ibiblio.org/mailman/listinfo/market-farming



  • Re: [Market-farming] black walnuts trees, prmsdlndfrm, 04/01/2010

Archive powered by MHonArc 2.6.24.

Top of Page