>What is the rate per acre of vinegar? How many gallons of 10-15% >should be used if it is to replace roundup? Does anyone know? > >figuring that glacial acetic acid is 57% and it can be purchased in >55 gal drums and diluted down to 10-15% easily, the only thing I >need to know now is what rate. > >thanks, >JEFF
Contact the ARS researchers and ask them Jeff, I think they're very approachable. Contact details in my original post. Please let us know what you find out. Best Keith > ><snip> > > > > > >Some home gardeners already use vinegar as a herbicide, and some >garden > > >stores sell vinegar pesticides. But no one has tested it >scientifically > > >until now. > > > > > >Agricultural Research Service scientists offer the first >scientific > > >evidence that it may be a potent weedkiller that is inexpensive >and > > >environmentally safe--perfect for organic farmers. > > > > > >ARS researchers Jay Radhakrishnan, John R. Teasdale and Ben >Coffman in > > >Beltsville, Md., tested vinegar on major weeds--common lamb's- >quarters, > > >giant foxtail, velvetleaf, smooth pigweed and Canada thistle--in > > >greenhouse and field studies. > > > > > >They hand-sprayed the weeds with various solutions of vinegar, >uniformly > > >coating the leaves. The researchers found that 5- and 10-percent > > >concentrations killed the weeds during their first two weeks of >life. > > >Older plants required higher concentrations of vinegar to kill >them. At > > >the higher concentrations, vinegar had an 85- to 100-percent kill >rate at > > >all growth stages. A bottle of household vinegar is about a 5- >percent > > >concentration. > > > > > >Canada thistle, one of the most tenacious weeds in the world, >proved the > > >most susceptible; the 5-percent concentration had a 100-percent >kill rate > > >of the perennial's top growth. The 20-percent concentration can >do this in > > >about 2 hours. ><snip> ------------------------ Yahoo! Groups Sponsor ---------------------~--> Buy Stock for $4 and no minimums. FREE Money 2002. http://us.click.yahoo.com/orkH0C/n97DAA/Ey.GAA/FGYolB/TM ---------------------------------------------------------------------~-> Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuels list archives: http://archive.nnytech.net/ Please do NOT send "unsubscribe" messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
