One of the most common uses for household vinegar is as an all-natural weed killer. You have to be careful when spraying it around certain plants as it may be harmful to some, but when used on those pesky hard-to-kill weeds, they will disappear in two to three days' time.
Due to its burning effects, using vinegar in the garden has been touted as a cure-all for a number of garden afflictions, most notably weed control. The acetic acid of vinegar dissolves the cell membranes resulting in desiccation of tissues and death of the plant.
Vinegar is a really effective natural bug killer for plants. Dilute it 1:1 with water in a spray bottle and spray it over and under the leaves of affected plants. You can also use it around the house to deter bugs inside; the vinegary smell will quickly dissipate.
Vinegar has antifungal and antibacterial properties, and it can be a cheap and effective treatment for many types of mold.
If you spray vinegar on the leaves of your houseplants, it will destroy their cell membranes, warns the Northwest Center for Alternatives to Pesticides. This destroys the leaves, and if the vinegar gets down into the soil of the plant, it will dry out the roots and kill the plant.
Vinegar – Similar to mouthwash, the acetic acid of vinegar can control powdery mildew.
Vinegar is one of the best ingredients to make a pest control spray out of. It is effective in repelling ants, mosquitoes, fruit flies, and many others. Creating a mix is quite simple. What's best is that it is safe for humans and pets.
Add 2 tablespoons of vinegar and stir your mixture to thoroughly combine everything. Pour the mixture into a spray bottle and apply it liberally to all areas of the plant where you can see fungal growth and allow your plant to air dry. If you need to reapply, wait at least 3 to 5 days to avoid stressing out your plant.
Even though vinegar is an acid, it breaks down quickly in the soil and, therefore, is not likely to accumulate enough to affect soil pH for more than a few days. Vinegar causes a rapid burn to plant tissue of susceptible species, so unintended injury is quite likely without knowing more information.
Once they're gone for the moment, spray down the plants with a homemade insecticidal soap. A great recipe for a homemade bug spray for vegetable plants is to use one tablespoon of dish soap, one cup of vegetable oil, one quart of water, and one cup of rubbing alcohol.
Vinegar (acetic acid) is a non-selective burndown herbicide. In other words, it burns plants. Just like an acid would burn your skin, it destroys cell membranes. And not just weeds, but any plant or living thing it touches.
Does vinegar kill aphids? Vinegar contains acetic acid, and spraying a 50/50 solution of vinegar and water on aphids will kill them. Unfortunately, it will also kill or damage your plants, so I don't recommend using a vinegar spray for aphid control in the garden.
The acidity in vinegar can damage plant cells and cause them to die. In addition, vinegar can also change the pH of the soil, making it more difficult for plants to absorb nutrients. If you must clean your succulents with vinegar, dilute it heavily with water and only use it on the leaves—never on the stems or roots.
The Stardrops White Vinegar Spray is a multi-purpose cleaning solution, that is effective on limescale and is a traditional stain remover. This hard-working formula is ideal for cleaning most areas of the home including, glass, mirrors, laundry and other surfaces around your household.
A combination of half apple cider vinegar (although normal vinegar works just as well) and half water in a spray bottle works perfectly to repel those pests. This concoction can be sprayed around the perimeter of your home, on the legs of tables that have food served on them or even around a screen house or tent.
Effective organic fungicides for treating powdery mildew include sulfur, lime-sulfur, neem oil, and potassium bicarbonate. These are most effective when used prior to infection or when you first see signs of the disease. Baking soda has been proved by many gardeners to be effective in treating powdery mildew.
Baking soda solution: Mix 1 tablespoon baking soda and ½ teaspoon liquid soap such as Castile soap (not detergent) in 1 gallon of water. Spray liberally, getting top and bottom leaf surfaces and any affected areas.
THE CURE-ALL REMEDY FOR POWDERY MILDEW ON PLANTS
I recommend first spraying with a diluted solution of baking soda and dishwashing soap. Mix one tablespoon of baking and one teaspoon of liquid soap (not detergent) to a gallon of water. Spray on plants every one to two weeks.
Note: It's not necessary to spray vinegar directly on your plants to deter pests. In fact, this can damage or kill plants, especially if you're using large amounts of vinegar. If you do use apple cider vinegar on your plants, dilute it generously with water.
When equal amounts were given orally and compared, it took less acetic acid to kill rats in the laboratory test that it did glyphosate. The acetic acid in even household vinegar was MORE toxic than Roundup!
Yes, it's true… vinegar does kill weeds, especially when used along with dish soap. Dish soap, vinegar and a spray bottle are all you need for making your own weed killer. The acetic acid in vinegar “sucks out the water” from the weed, which dries it up.
Mulch. Once you've got the weeds out of your garden, keep them from coming back with a 3" layer of mulch. Straw will work, as long as it doesn't contain weed seeds. Pine straw, wood chips, and bark chips also suppress weeds by blocking sunlight, and they'll break down slowly and amend your soil.