To make a natural root killer, mix some vinegar and water together and inject it into the plant's main stalk or taproot. Gardeners can also spray weed foliage with the vinegar mixture or pour it into the soil.
To make a natural herbicide, use the following steps.
- Mix the ingredients.
- Water plants with the mixture.
Dilute vinegar with some water in a container.
Inject the mixture into the main root of the plant or spray the leaves with the vinegar. The vinegar makes the soil totally infertile, so gardeners should avoid spraying or pouring vinegar near garden beds or anywhere else they want other plants to grow.
Gardeners can also kill weeds with salt water or by pulling undesirable plants.