We’d do it again

The other day I mentioned some homemade weed killer that we were
going to try. Wanted it mainly for the cracks in the driveway where
grass and weeds keep popping up. Said home made weed killer only
has 3 ingredients and we had those on hand anyway.

The version we tried called for:

1 gallon white vinegar

1 cup salt

1 teaspoon liquid dish soap

Warnings abound on the site with the recipies that this mixture will
kill all living plants within the area sprayed, which made it perfect
for the cement cracks.

The vinegar, at 5% acetic acid, is straight from the grocery store
and acts as a desiccant. Put simply, it removes the moisture from
the plant.

Salt, rock salt or water softener salt, also acts to wick moisture
from the offending plant. Salt can also also affect other plants
nearby and should not be sprayed on any plant you want to keep.

Soap, liquid dish soap, is added to improve the absorption of the
liquid into the weed. The soap breaks down the waxy surface on most
lawn weeds which helps the vinegar and salt get absorbed.

Of course there are variations and we found several. As mentioned,
we used the one we did because all ingredients were already here.
Another version used the following ingredients:

1 gallon white vinegar

2 cups Epsom salt

1/4 cup original blue Dawn dish-washing soap

Both recommend to wait until early afternoon, or all the dew is gone
from the weeds. Both claim by the next afternoon the weeds are dead.
Both also urge caution around plants you may not want to kill.

We had varying degrees of success and I blame that on myself. The
recipe page said wait until afternoon and I went out mid-morning. The
sites also mention not to apply the mixture if rain looks likely
within two day of spraying, we had rain the next evening.

So, if you think this may be the answer to your weed problem, we’d
recommend it. If you follow directions. Enjoy our Saturday. Now I
need coffee.
Comments are always welcome.

2 Responses to We’d do it again

  1. Grumpa Joe says:

    Thanks for sharing that formula. I have used a similar recipe using vinegar and had mixed results probably for the same reasons you cited.

  2. cruisin2 says:

    Grumpa Joe,
    you’re welcome. I’ll give it another go before giving up.

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