Many people assume this homemade spray completely destroys weeds from root to tip. The reality is more complicated.
This mixture works primarily as a contact treatment. In other words, it damages the parts of the plant that it directly touches. Leaves and stems often begin to dry out quickly after application, especially during hot weather.
However, deep root systems may survive the initial treatment. Perennial weeds with extensive underground structures can sometimes send up new growth even after the visible parts have been destroyed.
This is why repeat applications are often necessary. Each treatment weakens the plant further, eventually exhausting its ability to recover.
What You Need
To prepare this homemade weed-control solution, gather the following ingredients:
300 milliliters of water
1 tablespoon citric acid
200 milliliters white vinegar
1 tablespoon kitchen salt
1 tablespoon liquid dish soap
1 additional liter of water