Roses require attention in spring. They need to be aired in time, uncovered in time, and also trimmed, treated and fed.
All these procedures determine the health of the bush, but it is spring treatment that helps protect roses from diseases and pests.
What diseases do roses have?
The plant is mainly affected by black spot and powdery mildew. Rust is not uncommon. The most severe is considered to be infectious burn, which causes the shoots to die off.
What to process
For prevention purposes, copper-containing preparations or fungicides, as well as antifungal agents, are used.
Infectious burn
Black spots with a red border encircling the bush indicate that it is damaged. The entire shoot must be cut out. Then, a 1% solution of copper sulfate is applied.
Black spot
In this case, black spots appear on the leaves, and the foliage on the lower shoots may begin to turn yellow and fall off. Industrial preparations are used.
Rust
It appears as bright orange spots on the leaves. Treatment is carried out with store-bought preparations.
Powdery mildew
In this case, the leaves are deformed and covered with a white coating that looks like flour. At the early stages, you can fight it by dusting the bush with ash, but it is better to do this on wet greenery.
Downy mildew
The sign of damage is purple spots. Special industrial compounds are used.
