Recognize and treat diseases

Which diseases and pests can occur?

Aphids and others Pests rarely occur. With the hornbeam, the gardener is more likely to deal with the following diseases and pests:

• Powdery mildew
• Leaf spot fungus
• Hornbeam spider mite

Recognize and treat powdery mildew

The leaves of the hornbeam are covered with a whitish coating, curl up and show yellowish and brown spots. These show symptoms of illness Powdery mildew at.

Real one mildew occurs when there is too much moisture. In very dry summers and winters, water the hornbeam more often, at least while it is still young.

Affected leaves cut Take them off and dispose of them. A fungicide can help if the infestation is severe.

How to fight leaf spot fungus

The leaf spot fungus is making its way tan and yellow spots noticeable on the leaves. It preferably damages very young trees, for which it can become a real danger.

Here, too, cutting helps. If the fungus cannot be contained, you should use an appropriate fungicide on younger hornbeams.

What can be done against hornbeam spider mites!

Hornbeam spider mites are often very intense. First of all, the leaves get small dots. Later they are covered with a fine net and fall off.

Just cutting usually doesn't help. Treat the hornbeam with a spray against Spider mites.

Always dispose of infected leaves

In the case of healthy hornbeams, it makes sense to simply leave the foliage in the spring. It forms a protective mulch cover and supplies the Hornbeam with nutrients.

However, if the tree is infested with diseases or pests, you must always dispose of the leaves and all cut-off plant parts in the household waste.

Under no circumstances should these residues be put on the compost. The pests and fungi can then spread and attack other plants.