The linden tree has been a popular and culturally important deciduous tree since time immemorial. They are still often found in parks, gardens and along avenues. However, it is not immune to diseases and pests - some pests are even part of the seasonal standard program.
What diseases commonly occur in linden trees?
Common diseases in linden trees are caused by pests such as the linden jewel beetle, the linden spider mite and the linden sawfly. Fungal infections can also occur. Quick action and natural control methods, such as the use of beneficial insects, are crucial.
What the linden tree can do to it
The linden tree is most likely to be affected by the following parasites and harmful influences:
- Pests
- Mushrooms
Pests
The most common he alth problem with linden trees is pests. There are a handful of varieties that specialize in particular on the linden tree. These also have the name of their host in their name, such as the linden jewel beetle, the linden spider mite or the linden sawfly. But the common aphid also particularly likes to attack park and garden trees.
Linde beetle
The linden jewel beetle primarily attacks previously damaged, weakened linden trees. The first signs of infestation are wilted leaves, swelling bark and draining plant sap. It is important to pay attention to these rather inconspicuous signs and then act quickly - because in an advanced stage of the jewel beetle infestation, the linden tree can often no longer be saved. Measures include removing and burning infected branches or using an insecticide.
Linden spider mite
It causes the leaves to turn brown and fall off. As with spider mites in general, you can identify the infestation relatively easily by the silvery-gray leaf cover and the fine webs. In addition, the yellow, red-eyed mites can be seen with the naked eye. You can prevent this by applying a ring of glue (€9.00 on Amazon) to the trunk in spring. The best way to combat the parasite is naturally with predatory mites, which you can get from specialist retailers.
Linden sawfly
The lime sawfly lays its eggs on the undersides of leaves. After hatching, the larvae eat through the underside of the leaves and cause the leaves to turn brown and fall off. Here, too, you have to act quickly - because if the first generation survives and a second pupates in the ground, the extent of the damage will become really serious in the following year. You should also combat the lime sawfly by targeting beneficial insects, such as lacewings or ladybirds.
Mushrooms
You can avoid fungal infestation by only carrying out cutting work with clean equipment. You can usually recognize fungi by premature discoloration and falling off of the leaves. Diseased plant parts must be removed; if the stage is advanced, fungicide use is also conceivable.
