Laburnum is a beautiful and fragrant ornamental shrub for gardens and parks - and a particularly easy-care one at that. It is also robust against diseases and pest infestation. Nevertheless, one or the other ailment can occur.
Aphids suck the life out of the laburnum
Laburnum - beautiful and sturdy
From a horticultural point of view, the laburnum, Latin Laburnum, is an extremely grateful ornamental shrub. It makes hardly any demands on its location and still produces beautiful and intensely fragrant flowers every year. It is also great that it is very little susceptible to diseases and pests. And if he does get sick or is infested with parasites, it usually doesn't bother him too much. He gets over many aches and pains on his own and does not need any special treatment.
Possible diseases and pests that should be treated include:
- galena
- spider mites
- aphids
galena
Galena is a fungal disease that causes the leaves to turn gray. As with most diseases that can affect laburnum, the cause of galena is usually too wet and cold soil. In any case, avoid excessive watering. As a rule, the laburnum does not require any additional watering.
measures
You can get rid of galena by removing infested shoots with a clean knife that has to be cleaned between cuts. It is best to seal the interfaces.
spider mites
The small red, yellowish or greenish spider mites can be seen with the naked eye - and above all they cover their plant host with their silvery webs of thread. They suck on the plant, usually on the underside of the leaves, and can definitely weaken it.
aphids
Aphids can also be seen with the naked eye and are characterized by their black to green or yellowish-orange color and a mealy coating. Aphids also suck the sap of their plant host.
Measures against pests
With both spider mites and aphids, you can search the laburnum thoroughly and remove the affected shoots as completely as possible. A cut seal is also recommended here.
Instead of mechanical removal and to avoid pruning, which laburnum does not tolerate well, you can of course also use an insecticide. The targeted use of beneficial insects such as predatory mites or gall midges, which you can purchase in specialist shops, is ecologically more advantageous and environmentally friendly. Lacewings or ladybird larvae are also suitable for aphids.