How to prevent and fight it

How do I recognize powdery mildew on herbs?

Both forms of powdery mildew manifest themselves on herbs different identifiers. However, both species show a white to grayish lawn of fungi. With powdery mildew, you will find this on the upper side of the leaf, where you can wipe off the coating by hand. This fungus forms mainly in nice and warm summer weather and is therefore also called fair-weather fungus. Downy mildew shows up on herbs by yellowish-brown spots on the leaves. In addition, the fungal lawn can be found on the underside of the leaf.

How do I treat powdery mildew on herbs?

If herbs are infected with powdery mildew, you should first remove all affected plant parts. It is better to dispose of them in the household waste. Against powdery mildew, you can use various means based on

home remedies such as milk, baking soda, rapeseed oil or vinegar. A garlic stock can be used against both powdery mildew and downy mildew. The regular use of these funds is particularly important. For cold-loving herbs like oregano, soil pH can get through algae lime or rock flour(€11.00 at Amazon*) increase.

Can I prevent powdery mildew on herbs?

The best preventive measure against powdery mildew the right location and customized care. As a result, vigorous plants develop
which are less susceptible to fungal pathogens. You can also strengthen the herbs with horsetail tea. Avoid fertilizing with high levels of nitrogen, as this substance makes the leaves more sensitive. Plant your herbs far enough apart so they can dry off quickly. Possibly the place in the Herb garden not ideal for the particular plant.

Can I eat herbs with powdery mildew?

Powdery mildew can be washed off herbs so the plants can be eaten. Only people at high risk of allergies should avoid these herbs. However, mildew often destroys the aroma and the herbs taste bland.
In the case of downy mildew, you should refrain from eating the herbs, as the fungus can penetrate the structure of the leaves and therefore cannot be washed off.