10 Effective Ways to Get Rid of Powdery Mildew

Discover effective Ways to Get Rid of Powdery Mildew and prevent it from coming back with these tips and remedies.

Here are various Ways to Get Rid of Powdery Mildew to keep your plants healthy and beautiful. From using natural remedies like baking soda and neem oil to commercial fungicides, we’ve got you covered. So let’s get started!

Check out our articles on getting rid of pests here

What is Powdery Mildew, and Why is it Harmful to Your Plants?

Powdery mildew is a fungal disease that affects various plants, including vegetables, fruits, ornamentals, and trees. It is caused by a number of different fungal species and is characterized by a white, powdery coating on the leaves and stems of plants.

It is often found in areas with high humidity and can spread quickly in warm, damp environments. Powdery mildew can stunt the growth of plants, cause leaves to yellow and curl, and reduce the quality and yield of fruits or vegetables. It can also make plants more susceptible to other diseases.

Ways to Get Rid of Powdery Mildew

1. Baking Soda

Baking soda is a natural remedy for powdery mildew. To make a baking soda spray, mix 1 tablespoon of baking soda and ½ teaspoon of liquid soap in 1 gallon of water.

Pour the mixture into a spray bottle or pump sprayer and spray the solution on the infected plants. Repeat the treatment once a week until the powdery mildew disappears. Rinse the plants with water after each treatment to remove any residue. Here is the complete DIY.

Does Baking Soda Kill Ants? Learn here

2. Neem Oil

To make a neem oil spray, mix 1 tablespoon of neem oil and ½ teaspoon of liquid soap in 1 gallon of water.

Pour the mixture into a spray bottle or pump sprayer and spray the solution on the infected plants every 7 to 14 days, depending on the severity of the powdery mildew.

Be sure to cover both sides of the leaves and stems. Rinse the plants with water after each treatment to remove any residue. Check it out here.

Learn some Top Organic Neem Oil Uses in the Garden here

3. Use Milk

Milk is a natural remedy for powdery mildew. To make a milk spray, mix 1 part milk with 9 parts water.

Pour the mixture into a spray bottle or pump sprayer and spray the solution on the infected plants. Rinse the plants with water after each treatment to remove any residue. Learn how to DIY here.

Learn some Scientific Uses of Milk in the Garden here

4. Use Sulfur

Sulfur is a natural fungicide that can help control powdery mildew. Follow the instructions on the sulfur product you use, as the application rates can vary depending on the brand and type.

Generally, you’ll need to mix a certain amount of sulfur powder or liquid with water. Pour the mixture into a spray bottle or pump sprayer and spray the solution on the infected plants. Check out the idea here.

Want to Apply Sulfur to Your Lawn? Learn the Technique here

5. Hydrogen Peroxide

Mix 1 tablespoon of hydrogen peroxide in 500 ml of water. Mix well, and spray the solution on the infected plants. Allow the solution to sit for 10-15 minutes, and then rinse the area with water and let it air dry.

Repeat the treatment once a week until the powdery mildew disappears. Here is the DIY.

Learn about some Fantastic Hydrogen Peroxide Uses in the Garden here

6. Vinegar Solution

Mix 2-3 tablespoons of vinegar with 1 gallon of water. Spray the solution on the infected parts and allow it to sit on the plant for several hours, or even overnight, to allow it to penetrate the mildew.

Rinse off the vinegar solution with water and repeat the treatment every 6-8 days until the powdery mildew disappears. Learn how to DIY here.

Find out the Effective Apple Cider Vinegar Uses in the Garden here

7. Garlic Spray

Crush a few cloves of garlic and steep them in 1 quart of hot water for 30 minutes. Strain the garlic and mix it with 1 gallon of water. Spray the solution on the infected plants.

Repeat the treatment once a week until the powdery mildew disappears. Here is the complete DIY.

Learn about Growing Garlic in Pots here

8. Commercial Fungicide

If natural remedies do not work, consider using a commercial fungicide labeled for powdery mildew. Choose a product and follow the instructions on the label carefully, including the application rates and safety precautions. Wear protective gear such as gloves, goggles, and a mask while applying the fungicide.

1. Monterey LG6135 Garden Insect Spray
2. BioAdvanced 706902 Fungus Control
3. Bonide Fung-onil Multi-Purpose Fungicide
4. GreenCure Fungicide
5. Ortho Max Disease Control
6. Bayer Advanced 701700 Disease Control
7. Garden Safe Fungicide3
8. Spectracide Immunex Fungicide Concentrate
9. Plantonix Fungicide
10. Ferti-lome Triple Action Plus

Learn some Effective Homemade DIY Fungicide Recipes for Plants here

9. Apply Compost Tea

To make compost tea to get rid of powdery mildew, mix one part compost with four parts water in a 5-gallon bucket. Let the mixture steep for 24 hours. Strain the tea and dilute it with an equal amount of water.

Spray the diluted tea directly onto the affected foliage and repeat every 10 days. If the leaves are dry, water them prior to spraying to ensure that the tea can penetrate the surface.

10. Potassium Bicarbonate

Mix 1 teaspoon of potassium bicarbonate with 1 gallon of water in a watering can or spray bottle. Thoroughly spray the affected areas and reapply every 7-10 days or after rain.

Monitor the plants for signs of new fungal growth, and continue using the solution in the gap of 10-15 days until the powdery mildew has been eliminated.

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