Baking Soda, a Home Remedy Fungicide – the Cornell Formula

Powdery mildew and black spot are common garden diseases and one of the most common home remedies is a mixture known as the ‘Cornell Formula’, a mixture whose main ingredient is baking soda.

This is an example of how and why myths get started.

In this post I will discuss the Cornell Formula, explain how it got started, and have a look at the efficacy of using baking soda as a DIY fungicide. Does it work? Will it harm your plants? Are there better options?

Baking Soda, a Home Remedy Fungicide - the Cornell Formula
Cornell Formula for powdery mildew – does it really exist?

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Powdery Mildew Treatments

Powdery mildew is a very common infection on plants and most books that discuss plant diseases will discuss this one. But do the suggestions for reducing the disease work or are they a myth?

powdery mildew treatment
Powdery mildew

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