It works by drawing water out of plant cells through a process called osmosis.
Without sufficient water, the plant struggles to survive.
However, salt must be used very carefully because it can also damage the soil itself.
Citric Acid
Citric acid provides additional acidity that helps weaken plant tissue.
Combined with vinegar, it creates a stronger contact effect on exposed leaves.
Liquid Dish Soap
Plant leaves naturally contain a waxy coating that repels water.
Dish soap helps break this surface tension.
This allows the vinegar and citric acid solution to stick to the weed rather than rolling off.Vinegar
What This Weed Killer Can and Cannot Do
Many people expect homemade weed sprays to work exactly like commercial systemic herbicides.
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