The vinegar herbicide recipe does not call for table vinegar, but what
at least one company markets as "garden vinegar" It is 20% acetic acid.
Table vinegar is 4 or 5%. I'm not crazy about Roundup, but I wouldn't
be so sure that 20% acetic acid plus salt is more environmentally benign
than Roundup, especially in "flood" quantities.
There are no stupid questions, but there are lots of stupid answers.
Larry Wasserman - Baltimore Maryland - lwasserm(a)sdf. lonestar. org
That Roundup residue won't hurt anything as it rapidly breaks down on
contact with soil. I'd worry more about acidic soil and salt buildup
using vinegar and salt. Using muriatic acid is also just plain dumb as
it is corrosive and poisonous.
Once a year use an 'all season' weed killer. It kills the weeds and
prevents seed sprouting for 3-4 months.
I spray my 5-600sq foot patio in about an hour in May. For $20 --
then forget it til next year.
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