Ratio of 3% hydrogen peroxide to water is 1 part h202 to 8 parts water. This is a solution for example of 1 pint Hydrogen peroxide/gallon of water. It is safe to pour as a drench around your plant roots to sanitize the soil of fungus and other pathogens.
Hydrogen peroxide, well known as an ingredient in disinfectant products, is now also approved for controlling microbial pests on crops growing indoors and outdoors, and on certain crops after harvest. This active ingredient prevents and controls bacteria and fungi that cause serious plant diseases.
It also breaks down into the soil and releases extra oxygen that helps the plant grow new, healthy roots. Before you use hydrogen peroxide on your plants, you'll need to dilute it. Mix one part of 3 percent hydrogen peroxide with two parts water in a watering can or spray bottle.
Microbicidal Activity. Hydrogen peroxide is active against a wide range of microorganisms, including bacteria, yeasts, fungi, viruses, and spores 78, 654. A 0.5% accelerated hydrogen peroxide demonstrated bactericidal and virucidal activity in 1 minute and mycobactericidal and fungicidal activity in 5 minutes 656.
Rubbing alcohol has the same germ and fungal killing properties as hydrogen peroxide. As such, regular application can help eliminate surface infections.
H202 kills the bacteria and fungi in the soil responsible for root rot, and restores oxygen to help remaining roots recover faster. Directions: 1:1 ratio of Oxygen Plus 3% and water. Bottom water or top water so potting mix is fully saturated. Avoid leaves (pouring on leaves can burn them).
If you use a higher concentration of hydrogen peroxide on the foliage of the plant you run the risk of burning it. You could burn the roots, but since it's necessary to kill the root rot-causing bacteria, it's a risk worth taking.
As an added bonus, hydrogen peroxide can help discourage unwanted bacteria/fungi that may be lurking in the garden. To give plants an added boost of oxygen or for pest control using the 3% solution, add 1 teaspoon (5 ml.) per cup (240 ml.) of water in a spray bottle and mist the plant.
Spray your plants' foliage once per week if you're using hydrogen peroxide as a preventive. If your garden already has bugs, you may need to use hydrogen peroxide two or three times per week to get rid of them. You should also apply the spray after it rains, as the showers will wash off any spray you have applied.
Double Up Your Protection with Isopropyl Alcohol
With the peroxide helping to keep your plants healthy and free of bacteria, you now need to prevent contamination of the tools and equipment you use to plant, trim, and water your crops.
Combine a 4:1 ratio of water and Hydrogen Peroxide 3% – Oxygen Plus in a spray bottle (60ml of Hydrogen Peroxide to 300ml water). Increase to 2:1 ratio if your plant can handle it. Reduce the treatment to once a week until finished. Lightly spray the leaves to ward off unwanted pests.
Don't mix hydrogen peroxide with vinegar
Hydrogen peroxide and vinegar can be used on the same surface as long as it dries in between applications but they should never be mixed. When the two are mixed, it creates peracetic acid, which can harm the skin, eyes, throat, nose and lungs.
But before using hydrogen peroxide on your skin, make sure you dilute it with water to avoid skin irritation that can result from use of concentrated hydrogen peroxide. To treat fungal infection on your skin, soak the affected area with the dilute hydrogen peroxide for a few minutes, two to three times per day.
When using hydrogen peroxide for plants, the solution is generally diluted, making it safe for roots. To make a safe hydrogen peroxide mixture, start by mixing 1 part hydrogen peroxide with 9 parts water. Next, soak the roots in the solution for 30 minutes.
It is perfectly safe for plants when properly diluted and used in moderation. Adding hydrogen peroxide to water promotes better growth in plants and boosts roots ability to absorb nutrients from the soil. Diluted 3% peroxide adds needed aeration to the soil of plants and helps control fungus in the soil.
Another popular method for growers dealing with powdery mildew in their gardens is using hydrogen peroxide. One tablespoon blended with a gallon of water makes an effective solution to be sprayed onto your crops.
Dilute 2.5ml hydrogen peroxide and 3 drops of neem oil to a 7500ml spray bottle to spray leaves. 2.5ml ammonia and 2.5ml neem oil once a week for pest control in spray bottle.
Hydrogen peroxide is a highly reactive solution. When it comes into contact with a catalase, it releases oxygen and water causing bubbles. 3 If there is blood, bacteria, or another catalase on the skin, hydrogen peroxide will react with it and cause bubbling.
Fungicides are pesticides that kill or prevent the growth of fungi and their spores. They can be used to control fungi that damage plants, including rusts, mildews and blights. They might also be used to control mold and mildew in other settings.
70% isopropyl alcohol kills organisms by denaturing their proteins and dissolving their lipids and is effective against most bacteria, fungi and many viruses, but is ineffective against bacterial spores (CDC, 2020).