Mike- Called white walnut where I worked in Kentucky, it was being decimated by a blight...one of my favorite woods for it's grain. -Don
Sent from Don's iPhone 3GS... On Sep 25, 2009, at 8:16 PM, Mike Kowalski <[email protected]> wrote: > > Lee, Don, > > Thanks. I had some ambition to plant a butternut, but after hearing > about it's allelopathy I'm not so sure. I guess you'd have to be quite > careful where you put it. > > > Mike > > > > > On Sep 24, 4:18 pm, Lee Frelich <[email protected]> wrote: >> Don: >> >> Most ecologists take allelopathic to mean negative effects on other >> plant species. The plants that benefit could be either directly and >> positively affected by the allelopathic chemical (but this is >> unlikely), >> or benefit indirectly by being insensitive to the allelopathic >> chemical, >> but being freed from competition by removal of other species >> sensitive >> to the allelopathic chemicals (this is the most likely case, but no >> proof). >> >> Lee >> >> DON BERTOLETTE wrote: >>> Lee/Mike- >>> In my time wandering through Kentucky woods, black walnut trees were >>> the only thing I saw that could alter the advance of a field of poke >>> salat! >>> My question? What would negative allelopathic refer to? I can see >>> that it would be positive in this case for black walnut and negative >>> to most anything else, but I suspect it may refer to something else >>> entirely? >>> -Don >> >>>> Date: Thu, 24 Sep 2009 07:50:26 -0500 >>>> From: [email protected] >>>> To: [email protected] >>>> Subject: [ENTS] Re: Marion Brooks Natural Area, Elk County, PA >> >>>> Mike: >> >>>> We had a discussion a while ago on this topic, probably before >>>> you were >>>> on the list. Black walnut and butternut produce the allelopathic >>>> chemical juglone, which can stunt growth or even kill certain plant >>>> species, although I have seen raspberries and a species of >>>> coneflower >>>> (Rudbeckia triloba, the branched coneflower), growing under black >>> walnut >>>> trees. >> >>>> Sugar maple and bracken fern have also been found to produce >>>> allelopathic chemicals that reduce germination and growth of >>>> competing >>>> plants. There are probably many other examples. >> >>>> Lee > > > --~--~---------~--~----~------------~-------~--~----~ Eastern Native Tree Society http://www.nativetreesociety.org Send email to [email protected] Visit this group at http://groups.google.com/group/entstrees?hl=en To unsubscribe send email to [email protected] -~----------~----~----~----~------~----~------~--~---
