My objective was to point out that the narrow technical definitions of organic chemistry did not necessarily carry through to the definitions of commonly accepted "organic" gardening practices. I would concede there seems to be a fair amount of hair-splitting as to which compounds and practices are or are not "organic". As to rock dust, I have no idea as to it's "organic" gardening acceptability. It is not available locally and would be inappropriate to our desert alkaline soil. -Olin -----Original Message----- From: Thomas Giannou <thomas@tandjenterprises.com> To: Tomato@GlobalGarden.com <Tomato@GlobalGarden.com> Date: Wednesday, April 28, 1999 9:45 AM Subject: Re: [tomato] blights >Dear Olin, > >So, it might be "safe to say" that organic could embody something that is >not "chemically formulated." I've been looking at a Rock Dust product... >it's a fine powder made from volcanic rock. The WSDA fertilizer division >wants a chemical analysis by certain EPA standards so they can see the heavy >metal content of the product. Since the manufacturer says the application >of their product is cumulative and their analysis shows there are small >amounts of heavy metals present, I have more than a little concern about >putting their product on soils year after year. They say their product >works well with tomatoes. It can be dusted onto the leaves and washed off >after 24 hours and/or mixed into the soil. This kind of product certainly >is a natural substance and even has carbon in it. It's NPK is 0 .003 .007. > >A couple of questions: > >Would you call Rock Dust an Organic product? > >Has anyone out there used Rock Dust on their tomatoes? If so, what kind of >observable results did you obtain? What was the brand name? > >Regards, >Thomas Giannou >Spokane, Washington > > >-----Original Message----- >From: Olin <millero@worldnet.att.net> >To: Tomato@GlobalGarden.com <Tomato@GlobalGarden.com> >Date: Wednesday, April 28, 1999 8:41 AM >Subject: Re: [tomato] blights > > >>From: John Sorge <jsorg@hal-pc.org> >>To: Tomato@GlobalGarden.com <Tomato@GlobalGarden.com> >>Date: Tuesday, April 27, 1999 5:49 PM >>Subject: Re: [tomato] blights >> >> >>>Any copper fungicide is, by definition, not organic. Organic, as I >>>understand it, means some compound of carbon and another commonly >occurring >>>element such as oxygen. etc... >> >>There are many "organic" gardeners who are aware of the branch of chemistry >>concerned with carbon compounds, have also taken classes in organic and >>inorganic chemistry, and are aware of the chemical definition of the term >>"organic". But most have accepted the term "organic gardening" with the >>knowledge that the term is chemically imprecise (as applied to organic >>chemistry) and don't get too hung up over it. Most organic gardeners >>practice the "organic gardening" discipline" to avoid using synthetic >>chemicals whose harmful effects are not known and to practice >>environmentally responsible gardening. >> >>The 10th Edition of Merriam Webster's Collegiate Dictionary lists one of >the >>definitions of "organic" as": >> >>"of, relating to, yielding or involving the use of food produced with the >>use of feed or fertilizer of plant or animal origin without employment of >>chemically formulated fertilizers, growth stimulants, antibiotics, or >>pesticides." >> >>Olin >> >> >> > >