Ivy is generally considered to be very robust. Nevertheless, it should not be underestimated that the climbing plant is quite susceptible. If the leaves have brown spots, it may be due to lack of care. Diseases and pests are also the cause of the discolouration.
Brown spots on the ivy leaves can result from fungal diseases
Causes of brown spots on leaves
- dryness
- not hardy
- fungal diseases
- pests
Dryness is a very common problem. Ivy likes it moist rather than dry. Therefore, water the ivy regularly, but make sure that there is no waterlogging. If the air in the room is very dry, spraying with water can be helpful.
Not all ivy varieties are absolutely hardy. Frost damage is also noticeable through brown spots. It is therefore better to grow varieties that are not frost-hardy in pots, which are easier to overwinter.
Brown spots from diseases
If only brown spots appear on the leaves, without the whole leaf discolouring, it is probably focal spot disease. It is triggered by fungal spores.
Another disease of ivy is ivy fungus. First, the leaves get brown spots, which turn black over time.
Cut off diseased shoots generously. Light up the plants well. Dispose of the plant remains in the household waste. Avoid spraying the ivy with water to prevent the fungal spores from spreading. Only use clean cutting tools. Clean knives and scissors after use.
Brown spots from pests
In ivy, which is kept as a houseplant, brown spots appear on the leaves when infested with pests. It could be spider mites or scale insects. If you look at the underside of the leaves, the pests can usually be seen with the naked eye.
Cut off affected plant parts. Then treat the plant with a solution of water, suds and alcohol. In the case of severe infestation, use commercial sprays.
To prevent this, make sure that the humidity is not too low. Never place ivy next to or over warm heaters.
tips
Ivy prefers a shady to half-shady location. It can only tolerate direct sunlight for a few hours. Direct midday sun in particular can cause the leaves to turn brown because they burn.