Powdery Mildew in Carrots

Is your carrot foliage turning white and dying ? If yes, your carrots might be battling ‘Powdery Mildew’ fungus and here is how you can help.

This year I am looking forward to a delightfully colorful harvest of carrots from the wooden box planter.  Atomic Red, Cosmic Purple, Scarlet Nantees and the yellow carrots are planted in a long wooden box on my terrace garden. I was really happy with its progress until last week when I started noticing that the foliage is turning white and leaves are also getting dry and dropping off. Carrots are still young and need more time in the soil to swell up and become large and juicy but without their leaves they cant. 

These are classic symptoms of Powdery Mildew, a fungal disease, that can effect many plants. Here is how you can identify & prevent this disease naturally.


Healthy carrot foliage is lush green. Signs of white cloudy spots indicate a fungus attack.


  1. Fluffy white growth on stem and leaves
  2. Dry, brittle leaves
  3. Foliage loss in severe cases


 Powdery mildew appears in highly humid conditions in moderate climate. 

  1. Monitor your plants regularly. 
  2. Avoid watering the leaves of carrots.
  3.  Prevent water stress by maintaining a watering pattern and never over water. 
  4.  Buy good quality seeds to ensure strong and healthy plants.

Make your own natural fungicide


Baking Soda: A blessing for an organic garden.

Once your plants are under attack, you can use natural fungicides like baking soda or sulfur mixed in water to spray over it. I used 1 tbsp baking soda mixed in 2 liters of water and sprayed it all over my carrots. 

I noticed the disease very late and I fear that baking soda magic will not work. In that case, I will will have only one option of harvesting carrots as they are and rescue the crop. There will still be lots of baby carrots to feast on !


Carrots: The Radiant Roots


Zahra Ali Husain is a sustainability educator, freelance writer and an environmentalist. She is also a co-founder of Organic City Pakistan and runs the Green Schools & the Horticulture Therapy programs along with Yasir Husain. Zahra also manages an organic farm.