Diseases rarely occur in privet
Privet is extremely robust and hardly susceptible to disease. If diseases occur or pests attack the shrub, the privet usually deals with it itself. The following problems can occur:
- Fungal attack
- Root rot
- Pest infestation
- Powdery mildew is rare in privet
- Illnesses are very rare in Ilex crenata
- Illnesses rarely occur in the black-eyed Susanne
They are expressed by various symptoms:
- Leaves roll up
- Leaves turn yellow
- Leaves fall off
- The leaves have a whitish coating
Most fungal diseases and root rot are caused by a lack or too much moisture. The privet likes it a little damp, but does not cope well with waterlogging.
Leaves curl up and fall off
Leaves curling mostly occurs in the spring when the privet aphid appears. The hedge no longer looks so beautiful, but the privet is hardly at risk. The leaves grow back in summer.
If the infestation is very severe and if the privet does not seem very strong in general, you should use suitable remedies against aphids.
Privet gets yellow leaves
Yellow leaves and / or many spots on the leaves are caused by the leaf spot fungus. It occurs in very humid summers.
You can combat it by generously cutting the affected branches and thinning out the bush. If necessary, put the privet on stick. He can take that without any problems.
Of course, you can also use biological pesticides from the garden center.
Leaves dry up
If a lot of leaves become dry and fall off, it may be due to insufficient soil moisture. The black weevil, or rather its larvae, may also be responsible for this.
If the infestation is severe, you can control this insect with nematodes from the gardening specialist.
Privet loses leaves
Privet isn't evergreen. This means that it sheds its leaves in winter. It is a completely natural process. Some species of privet, such as Privet atrovirens, keep the foliage on the bush longer. They are therefore preferably planted as privet hedge. However, this species also loses most of its leaves in the course of winter.
Whitish coating indicates powdery mildew
Powdery mildew is also not dangerous for the privet. More frequent occurrence is noted if the location of the privet is very dry. Sprinkling the privet hedge with more water in the morning hours may help.
The privet will only die in the rarest of cases, so you don't have to worry too much.
If the privet is very weak, you should think about additional fertilization. Put ripe compost and horn shavings (€ 6.39 on Amazon *) under the bushes. Coniferous fertilizer can also be used for fertilization.