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Home Remedies for Powdery Mildew

Powdery mildew is a type of fungus that can grow indoors, but is a common problem in many gardens and greenhouses. Gardeners can use a variety of harsh chemicals to kill the powdery mildew, but they often run the risk of concurrently damaging their plants.

Use a milk solution to kill powdery mildew.

Powdery mildew is a type of fungus that can grow indoors, but is a common problem in many gardens and greenhouses.  Gardeners can use a variety of harsh chemicals to kill the powdery mildew, but they often run the risk of concurrently damaging their plants.

Avoid this by using home remedies that will not damage your plants or your garden’s air quality. 


Rubbing Alcohol and Cinnamon

Cinnamon is a fungicide that attacks the powdery mildew in your garden without damaging your plants.  You can also use it inside your home to remove mild powdery mildew growth.

Add 2 tsp.  of ground cinnamon to a pint of rubbing alcohol in as spray bottle.

Shake the mixture to combine and let it stand overnight.  Filter the solution through a coffee filter or cheesecloth to take out any lumps of cinnamon that might clog the spray bottle.

Spray the solution directly on powdery mildew as needed. 


Milk

Milk is a natural fungicide that will attack powdery mildew growth on plants.  The milk will also make your plant's leaves shine.

To use milk, mix no more than 3 parts milk with 9 parts water and spray it on the plants leaves to cover the powdery mildew growth as needed. 


Dishwashing Detergent

Mild liquid dishwashing detergent will kill powdery mildew inside your home as well as in your garden.  Mix 1 tbsp.

of the detergent with 3 tbsp.  of cooking oil.

Add 1 tbsp.  of baking soda.

Pour the concentrated solution into 1 gallon of water and spray it on the powdery mildew every three days.  Do not spray more often as you run the risk of damaging your plants as well.

Use detergent that does not contain bleach or fragrances. 

About the Author

Kaye Wagner has been working in the fields of journalism and public relations since 2006 and is a recipient of a National Hearst Award. She is particularly interested in home-and-garden projects, as well as beauty and fashion writing. An avid traveler, she also writes travel reviews and guides. Wagner earned a Bachelor of Arts in journalism from Brigham Young University.

Photo Credits

  • Container of milk. Plastic milk bottle image by L. Shat from Fotolia.com
  • Container of milk. Plastic milk bottle image by L. Shat from Fotolia.com