Vinegar (acid kill)
Vinegar is an acid and is a
non-selective herbicide. This means that given a strong enough solution
it will kill just about all plants. Vinegar works best when used in the
heat of the day. The heat helps it react with the plant faster (before
it breaks down or evaporates). The only real problem with vinegar is
that if you are only spraying (rather than dousing) the ground you will
most likely end up with only a top burn leaving the roots alive. It is
only partially effective on grass and you will have to do several
application for grass and other stubborn weeds.
Spray bottle or mixing container
1 gal Vinegar (10%-20% is better)
2 Teaspoons of soap (recommended for all additional
1/4 the cup of Orange oil
1 cup of Concentrated Lemon Juice
1/2 cup salt- We do not recommend.... see additional information
Making the Acid based Weed Killers:
Simply mix the ingredients together.
Shaking is faster and more through than stirring.
How to use
Acid based Weed Killers:
Use protective clothing and do not get
in skin or in eyes. This is a relatively weak acid but in your eyes
it will burn like the dickens. It may irritate tender skin if you
don't wash up after words.
Locate your target and spray to have a
top burn. Top burns will kill most weeds after 2- three applications
(some after one). For more complete kills pour the solution on the
ground where the offending weed is.
On repeated applications you should
wait till you see green growth again to spray... spraying dead top
growth doesn't make it more dead. When you repeatedly kill the top
growth you depleat the plants reserves and it will eventually die.
Some plants have more reserves (like nutgrass) and may be very hardy
to this approach... it will work eventually. We suggest hand weeding
Some people swear that salt makes most
weed killers better... and it does. However over time, with repeated
applications, it can build up in the soil and keep anything from
growing and keep the soil from being a living soil. We suggest
against it. Some people only use salt on the cracks in pavement
(this is why we included it).