Question about black walnut toxicity - Homesteading Today
You are Unregistered, please register to use all of the features of Homesteading Today!    
Homesteading Today

Go Back   Homesteading Today > Country Living Forums > Gardening & Plant Propagation

LinkBack Thread Tools Rate Thread
Old 03/31/09, 07:07 AM
Join Date: Apr 2002
Location: SE Ohio
Posts: 23,494
Question about black walnut toxicity

Roy asked me this question last night and I had no idea what to answer. We know that there is a toxicity to certain plants from the roots, leaves,hulls, and bark mulches of black walnut trees. What about the ashes? He is burning a lot of walnut slabs from the sawmill and he was not sure if the ashes have this adverse affect also. Anyone have any ideas or knowledge about that?

I have posted this on the family board also.
New Forum:

Tightwad Tips & Frugal Living:

Last edited by Melissa; 03/31/09 at 07:19 AM.
Reply With Quote
Old 03/31/09, 08:25 AM
ksfarmer's Avatar
Retired farmer-rancher
Join Date: Apr 2007
Location: north-central Kansas
Posts: 2,891
Composting will break down the Juglone in walnut tree debris. I would think maybe burning would do the same thing, but, I can find nothing to verify this for sure.
* I'm supposed to respect my elders, but its getting harder and harder for me to find one. .*-
Reply With Quote
Old 03/31/09, 08:28 AM
Join Date: Jan 2009
Location: SW Ohio
Posts: 329
The toxicity is from juglone, a cyclic aromatic organic compound with a benzene/phenol structure. Therefore, it ought to be TOTALLY destroyed/burned in a fire. I say, use the ashes.
Reply With Quote
Old 04/01/09, 04:41 AM
Hired Hand
Join Date: Sep 2003
Posts: 1,600
The water used from cleaning walnuts will quickly bring nightcrawlers to the surface if poured on the ground. I've also been told that the Native Americans would purposely dam up streams, then put walnut hulls in the water to temporarily drug the fish which brought them to the surface.

I agree with the other comments that burning / composting the wood should breakdown the jugalone. That said, I think I would mix some of the ash with water, then pour the mixture on the ground where nightcrawlers are known to be. If the nightcrawlers come to the surface within a minute or two, the ash still contains jugalone...if not, the ash is probably safe to use in reasonable quantity. Great question!
Reply With Quote
Old 04/01/09, 05:54 AM
Wasza polska matka
Join Date: Aug 2008
Location: zone 4b-5a
Posts: 6,912
Cowboy Joe, I just read your nightcrawler tip in an old book I picked up...thats nifty you posted it
Reply With Quote
Old 04/01/09, 11:13 AM
Hired Hand
Join Date: Sep 2003
Posts: 1,600
Originally Posted by beaglebiz View Post
Cowboy Joe, I just read your nightcrawler tip in an old book I picked up...thats nifty you posted it
I saw this happen the first time I cleaned walnuts. Now I keep some dried hulls around for when I want to go fishing. Crush some up, mix with water, pour on the ground and harvest your having to dig.
Reply With Quote

Thread Tools
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -5. The time now is 10:19 AM.
Contact Us - Homesteading Today - Archive - Privacy Statement - Top - ©Carbon Media Group Agriculture