Plant leaves are naturally covered with a waxy coating that repels water.
Dishwashing liquid helps break this surface tension.
This allows the vinegar and citric acid solution to stick to the weeds instead of running off.
What this herbicide can and can’t do
Many people expect that home herbicides will work exactly the same as commercial systemic herbicides.
This is usually not the case.
This mixture acts primarily as a contact herbicide .
It damages parts of the plant with which it comes into direct contact.
Leaves often wilt within a few hours and may appear completely dead after a day or two.
However, deep roots can survive.
In the case of perennial weeds, new growth may sometimes take several weeks to appear.
Multiple treatment methods may be necessary.
How to prepare the mixture
Many home recipes use:
300 ml of water
200 ml white vinegar
1 tablespoon of salt
1 tablespoon of citric acid
1 tablespoon of dishwashing liquid
1 additional liter of water for dilution
Mix thoroughly until the salt and citric acid are completely dissolved.
If necessary, strain and pour into a spray bottle.
Important safety issues
The most important thing is salt.
Repeated applications of salt can damage the soil structure and create areas where future plants will have difficulty growing.
For this reason, this type of spray is best used for:
Cracks in the driveway
Edges of the sidewalk
Gravel paths
Terrace connectors
Avoid heavy use in the following areas:
Vegetable gardens
Flower beds
Trees
Bushes
Top tips for applying
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