How to fight the fungus

Formation of powdery mildew

There are two types of mildew:

• powdery mildew
• and downy mildew

The real powdery mildew

Powdery mildew is the so-called fair weather fungus. It owes this nickname to its ability to spread in warm temperatures and dry air. If the air in your greenhouse warms up, the fungus will find optimal conditions.

Downy mildew

The downy mildew, also known as bad weather fungus, prefers wet site conditions. Your plants are protected from precipitation in a greenhouse, but at the same time there is a very high level of humidity due to the warm temperatures. The fungus finds an ideal breeding ground on wet leaves.

Prevent

• if you want to harvest vegetables and fruits, you should use resistant varieties from the beginning
• spray your plants with a brew Field horsetail or garlic or a milk-water mixture. The acid keeps the fungus away
• regulate the humidity by ventilating your greenhouse regularly
• create a mixed culture in your greenhouse. In addition to susceptible plants, you should use herbs such as garlic, basil, thimbleSow chervil, chervil or chives
• do not plant your plants facing you so that the air can circulate properly
• check regularly for condensation on the walls of your greenhouse
• also make sure that the air is not too dry
• overfertilize Don't your plants. Otherwise you will inhibit their natural defense mechanism
• natural predators such as ladybirds also feel at home in a greenhouse
• Special, aseptic soil is available from specialist retailers. Alternatively, coconut soil has proven itself
• regularly remove the weeds between the plants