2. Baking Soda for Fungal Disease Control. Gardeners often use baking soda as a fungicide to treat diseases such as powdery mildew, black spot on roses, and other fungal infections. How to Use: Mix 1 tablespoon of soda with 1 gallon of water, a drop of dish soap, and optionally a tablespoon of vegetable oil.
Baking soda is one of the most commonly used and seen indoor plant fungus treatments. For this, you will need one tablespoon of baking soda, mixed with a gallon of water and two and a half tablespoons of vegetable oil. Once the mixture is ready, add it to a spray bottle, shake the contents and spray the affected areas.
Vinegar – Similar to mouthwash, the acetic acid of vinegar can control powdery mildew. A mixture of 2-3 tablespoons of common apple cider vinegar, containing 5% acetic acid mixed with a gallon of water does job.
Saturate the soil with 1/2 cup hydrogen peroxide 3% per 1 litre water. Put wet soil in a watertight container and leave overnight before planting. This kills pathogens such as fungi and bacteria including insect eggs and nematodes (roundworms).
Bicarbonates. Sodium bicarbonate can be successful against plant garden infections when utilized with oil. Though botanical fungicides are always advisable due to their effectiveness, potassium bicarbonate and ammonium bicarbonate provide better disease control and plant wellbeing than sodium bicarbonates.
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.
Prevent Fungal Disease
MAKE IT: Mix 1 teaspoon of baking soda and 2-3 drops of liquid soap in 1 liter of water. Spray the solution on the infected plants. Baking soda helps the plants become less acidic and prevents fungal growth.
Soap sprays made by mixing liquid dishwashing soap (in amounts from one teaspoon to one tablespoon per liter) with water have been used to prevent fungal infestations with great success by thousands of home gardeners.
Improve air circulation and increase light penetration in and around plants through judicious pruning and proper spacing. Thinning plants or rearranging surroundings can help. Prune infected plant parts promptly and dispose of the debris — don't compost it. Always cut back into healthy tissue, so no disease remains.
Although you only want to use Epsom salt on plants that need it (and after the soil has been tested), you can use Epsom salt on your plants in the garden once every four to six weeks.
There are almost countless uses for cinnamon in the garden: it can be used as a nature-friendly pesticide, a repellent against annoying insects, or as a catalyst to promote root growth in plant cuttings.
Baking soda (sodium bicarbonate) has been used as a fungicide since 1933. Recent research has demonstrated that although baking soda can be effective against plant diseases when used with oil, its sodium component can build up and become toxic to plants.
The nail will need to grow out to show clearer results. For deep, stubborn infections, it can take 6 months or longer for any visible changes. Even with consistent use, peroxide may struggle to reach fungus trapped under thickened nails.
Both rubbing alcohol and hydrogen peroxide kill fungi, too. Which product you use depends on what germs you're trying to kill, the surface you're trying to kill them on, and how much time you have. Rubbing alcohol works faster, but it can damage porous surfaces such as wood or granite.
For general maintenance and pest prevention, a diluted solution of hydrogen peroxide (around 1–2%) can be sprayed on the plants every 1–2 weeks. For more severe issues like root rot, you might need to apply it more frequently, possibly every 3–5 days, until the problem improves.
A good place to start is a mix of mild liquid soap and water, sprayed onto houseplants. One teaspoon of soap per litre of water will do the job. It sounds simple, but this formula will treat a lot of common houseplant pests. Add just a teaspoon of bicarbonate of soda and it becomes a great fungicide as well.
Turmeric. Turmeric contains curcumin, a compound with potent antifungal and anti-inflammatory properties.
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Because baking soda increases soil pH, many of the important macro and micro nutrients plants need may become unavailable to them. Baking soda in the garden can also contribute to soil compaction and crust build-up. This leaves the soil less porous causing nutrients and water to move poorly through it.
Three commercially available biological control agents can be purchased to control fungus gnats in pots or container media (Table 1). These include Steinernema nematodes, Hypoaspis predatory mites, and the biological insecticide Bacillus thuringiensis subspecies israelensis (Bti).