Even though the number of fungal diseases called “rust” is very high, they almost always share the same symptom: brown-orange blisters appear on the underside of leaves with yellow stains on the topside.
What factors lead to the appearance and spread of rust?
This disease most often appears during moist weather or excessive watering on leaves.
Wind can spread it to other plants in the garden.
When does rust appear and spread?
From the beginning of spring till the end of summer.
Which plants are vulnerable to rust?
There are a great many species that can develop this disease.
Rose trees are very often contaminated with rust, but many flowers, fruit trees, trees, shrubs and vegetables can be impacted as well.
Consequences of rust
In most cases, rust does not fatally endanger the life of the plant.
In the very worst case, all the leaves are lost.
What is especially problematic is contagion, the spread of the disease to other leaves on other plants.
It isn’t very nice in August.
How to treat against rust
Effective treatment products are often sold under the label “rose tree disease” and can be used to treat other plants as well.
- These are usually fungicides that can be used both to cure and to prevent rust.
- As soon as the first symptoms appear, you must quickly remove all infected leaves and burn them.