why does my broccoli have a white chalky substance on it?

We live in MN. Why does my broccoli have a white chalky substance on it? We have an organic garden.

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1 Comment To "why does my broccoli have a white chalky substance on it?"

#1 Comment By Nikki On 08/27/2012 @ 7:50 am

If they are chalky, it could be the type of water your are using. It may be mineral deposits building up on the leaves. Watering with a distilled water will stop this.

If they are fuzzy, this is mealybug and this article will help you treat it, as will neem oil, which is safe and effective: https://www.gardeningknowhow.com/plant-problems/pests/mealybugs-white-residue-on-plants-leaves.htm ^[1]

If it’s more powdery in nature, then powdery mildew may be the problem. Neem oil will help with this too. Here is more info: https://www.gardeningknowhow.com/plant-problems/disease/powdery-mildew-homemade-and-organic-remedies.htm ^[2]
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm ^[3]

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URL to article: https://questions.gardeningknowhow.com/why-does-my-broccoli-have-a-white-chalky-substance-on-it/

URLs in this post:

[1] https://www.gardeningknowhow.com/plant-problems/pests/mealybugs-white-residue-on-plants-leaves.htm: https://www.gardeningknowhow.com/plant-problems/pests/mealybugs-white-residue-on-plants-leaves.htm

[2] https://www.gardeningknowhow.com/plant-problems/disease/powdery-mildew-homemade-and-organic-remedies.htm: https://www.gardeningknowhow.com/plant-problems/disease/powdery-mildew-homemade-and-organic-remedies.htm

[3] https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm

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