- Diseases and pests that bother beech hedges
- Identify and treat fungal diseases
- What to do against pests on the beech hedge?
- Only use chemicals in emergencies
- This is how you prevent diseases
Beech hedges are very robust and not susceptible to diseases and pests. Problems arise primarily in an unfavorable location or in poor climatic conditions. How to recognize and treat diseases of the beech hedge.

Diseases and pests that bother beech hedges
- beech aphid
- Beech leaf gall midge
- Fungi / leaf spot fungus
Identify and treat fungal diseases
Fungal diseases occur more frequently when the location is very damp or too dry. Fungal infestation is common, especially in rainy summers. The leaves get spots, turn brown and fall off.
A fungal attack does not damage the beech hedge in the long term, but makes it very unsightly.
Cut off affected branches and discard them along with fallen leaves. Make sure that the beech hedge never dries out, but is also never too damp.
What to do against pests on the beech hedge?
Beech aphids, also known as beech ornamental lice, can hardly be seen with the naked eye. They become noticeable by a change in the leaves. They curl up and dry up.
If there are thickenings on the leaves, the beech leaf gall midge is at work. It is not particularly harmful and does not necessarily need to be fought.
It is important to know that the pests overwinter in the leaves of the beech hedge. Cut out affected shoots and collect the foliage. The infestation usually only lasts for one season.
Only use chemicals in emergencies
Chemicals are commercially available for all diseases of beech hedges. They are harmful to bees and beneficial insects. They should therefore only be used in emergencies and strictly according to instructions.
This is how you prevent diseases
A very good prevention against diseases is the frequent pruning of the beech hedge. This keeps the occurrence of germs and pests within limits.
Dispose of diseased foliage in the trash can, not on the compost. Thoroughly clean garden tools after each use.
Create good conditions for beneficial insects such as lacewings, ladybugs and hoverwasps. They are true pest control masters.
tips
In contrast to beech hedges, hornbeam hedges suffer more frequently from powdery mildew, especially when it is too dry or too wet. A light infestation can be treated with diluted milk.