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With Potassium Bicarbonate, Powdery Mildew is Eliminated

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With the use of potassium bicarbonate powdery mildew on plants are removed. This is a great solution that helps eliminate traces of this powder and brings back the good health of your plants. Let’s learn more about powdery mildew and how potassium bicarbonate works.

What is Powdery Mildew?

Powdery mildew is a type of fungal disease that primarily affects almost all types of plants. It is easy to spot as it forms white, sometimes gray, powder on leaves, stems, and even fruits. This is caused by a wide variety of fungi that belongs to Erysiphales. They usually thrive in warm and very humid weather.

Powdery Mildew

In most cases, this mildew begins on the lower leaves of the affected plant. If not resolved immediately, it can spread from one stem to another until the entire plant is covered with it.

Its covering can affect the photosynthesis and eventually turns healthy green leaves into yellow and fall off. This can also stop the development of flowers and fruits in the plant. That’s why potassium bicarbonate powdery mildew is easily eliminated.

There is an advanced stage of powdery mildew. This is when the leaves have become yellow or brown and started curling up. Soon enough the plant becomes defoliated.

What Is A Potassium Bicarbonate?

As already mentioned, the application ofpotassium bicarbonate powdery mildew can be prevented. But what it is exactly and how effective it is for the treatment?

Potassium bicarbonate is also known as potash, which is entirely different than baking soda or sodium bicarbonate. This is often used as an ingredient in making fungicide, most notably powdery mildew. However, it is also used as a leavening agent in bottled waters and wines.

Many gardeners these days rely on the use ofpotassium bicarbonate for powdery mildew. It is an excellent solution that is very simple to make. You do not have to invest on the regular herbicides and fungicides found in the shelves of grocery stores.

This one only requires an ounce of baking soda and a gallon of water. Some add extra ingredient or two, such as milk or dishwashing liquid.

Potassium Bicarbonate Natural USP Food Grade Crystalline Powder
Potassium Bicarbonate Natural USP Food Grade Crystalline Powder Via

Here are quick steps on how to make some potassium bicarbonate powdery mildew solution.

Mixed Solution 1 – Potassium Bicarbonate, Vegetable Oil and Water

Simply mix 3 tablespoons of potassium bicarbonate, 3 tablespoons of vegetable oil and 1/2 teaspoon of soap in a gallon of water.

Mixed Solution 2 – Potassium Bicarbonate, Dishwashing Liquid, Vegetable Oil and Water

For this mixture, use equal amounts of vegetable oil, dishwashing liquid and potassium bicarbonate. Mix them in a gallon of water.

Mixed Solution 3 – Potassium Bicarbonate, Liquid Soap, Vegetable Oil and Water

Another potassium bicarbonate powdery mildew mixture is the combination of 1 tablespoon potassium bicarbonate, 1 tablespoon vegetable oil, 1/2 teaspoon liquid soap and 1 gallon of water.

Mixed Solution 4 –Potassium Bicarbonate, Milkand Baking Soda

This solution refers to cow’s milk, which must be 1 cup. Mix it with 3 cups of water, a pinch of potassium bicarbonate and a pinch of baking soda.

Whatever solutions you want to choose, make sure that you refill a dry, clean empty spray bottle. It is easier to apply the potassium bicarbonate powdery mildew mixture and keep your plants protected from fungi or diseases.

What other things that help prevent powdery mildew?

Aside frompotassium bicarbonate powdery mildew can be avoided by a few gardening care. Let’s take a look of this list that should be implemented on a regular basis.

1. Get Rid Of Infected Leaves And/Or Stems

Get Rid Of Infected Leaves And/Or Stems

It is a basic task to regularly clean your garden and its nearby surroundings. Always dispose brown or dead leaves, especially those that are still attached on the plant. Any infected leaves, stems or fruits of powdery mildew must be also cut off. This is one easy way to prevent the spread of the disease.

2. Water Soil And Not Plants

Water Soil And Not Plants

Plants survive upon watering but this liquid can also encourage the growth of powdery mildew. The common mistake of most beginners is that they pour water all over the plants instead of just in the soil.

Hence, there is a better advantage of using a water hose than a sprinkler system to make sure that you only keep the soil moist and leaves dry.

3. Use Fertilizers With Nitrates Moderately

Use Fertilizers With Nitrates Moderately

The over fertilizing of plants that contain nitrates can stimulate the growth of powdery mildew. This is another important thing to keep in mind if you want to protect your plants from any fungi.


Remember that through the help ofpotassium bicarbonate powdery mildew can be easily dealt with. Choose among the solutions as suggested above as well as maintain some basic care to keep your plants free from diseases.

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