Vinegar/used motor oil mix kills just the same. The carbon in the oil is a natural fertilizer as well.
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That may be your home remedy, good for your beds and gardens, but it does not scale to large housing developments, corporate business parks, and residential homes.
Most people do not want their yards smelling like an auto junk yard, not to mention there are many regulations that prohibit dumping used motor oil on the ground for any reason whatsoever.
BLEACH works really well, and it’s cheap.
Vinegar works just as good as motor oil & roundup.