- The visible signs
- Mistakes in care as a trigger
- Isolate diseased rubber tree
- Remove spotted leaves
- Treatment with fungicides
- Optimize location and maintenance
The rubber tree first sprouts a reddish-coated tip, from which a lush green leaf usually unrolls. Patterns on the leaves are inherent in some varieties. But not every stain is harmless. Leaf spot disease hides behind some.

The visible signs
Leaf spot disease is clearly visible on the leaves. Any patterns that are not part of the natural appearance of the plant should be taken seriously as they could be the symptom of this disease. It usually causes yellow, brown and occasionally black spots on the leaves.
Mistakes in care as a trigger
As the name suggests, the rubber tree is a small tree in its homeland. There he stays outdoors, where nature takes care of him. In this country the tree is of a more delicate appearance and almost always an indoor plant that roots in pots. Being in closed rooms and the need for targeted care make them susceptible to illness as soon as something is wrong.
The following care errors promote leaf spot disease:
- too moist potting soil
- water that is too cold
- excessive spraying of the leaves
- too high humidity
- lack of or little air circulation
- unsuitable, cold location
All these care mistakes weaken the vitality of the plant and make it easy for the pathogens to conquer it.
Isolate diseased rubber tree
In living rooms, several plants are often kept in close proximity. The fungus does not have far to a new victim, especially not when their leaves touch. Among other things, dragon trees, camellias, anthuriums, hydrangeas and various types of orchids can become ill.
Move the diseased rubber tree away from other plants before you take any further control measures. As a precaution, keep an eye on the still healthy-looking plants.
Remove spotted leaves
The sooner you notice the infestation and act, the more of your rubber tree will be left. All affected leaves must be cut off close to the branch with clean and disinfected scissors. The cutting tool should be disinfected again before each cut.
Treatment with fungicides
After all infested areas have been removed, the rubber tree can be sprayed with a fungicide. To do this, place the tree outside so that the chemistry cannot spread into the room air.
Optimize location and maintenance
It's high time to get detailed information about the needs of the rubber tree, to recognize mistakes in care and to remedy them. Only then will this disease not get an opportunity to visit the tree again.