How offensive, when you want to cut a bouquet of fresh fragrant flowers, you approach the rose bush and notice the black spots on the leaves of the rose. And it's not just that the aesthetic appearance of such a bouquet is no longer given. A rose bush can simply die.
The disease begins with the lower part of the plant and gradually rises. Spots increase, unite. The leaves turn yellow and fall off. Shrubs can remain completely naked. Flowers also lose their appeal. Butons are formed less and less.
If you do not take measures to save the bush, it dies within two to three years.
Black patch on roses is an artful fungal disease caused by the fungus Marssonina rosae.
Black patch on roses, fortunately, can be cured if taken immediately, if the first signs of the disease are found. Flowers, like humans, are easier to prevent a disease than to fight it.
What measures can be taken to prevent the development of rose disease - a black spot?
- when buying, choose resistant to black patch varieties;
- Collect the affected leaves and burn them so that mushrooms do not fall on other bushes;
- correct pruning of roses increases the resistance of plants to black spots;
- Do not allow soil to grow around the bushes with weeds;
- Sprinkle rose bushes with infusion of mullein or horsetail;
- in rainy weather, sprinkle the earth around the bushes with ashes and treat the leaves with special preparations (Rovral, Fitosporin, Gamair).
Black patch of roses - treatment
If the plant is sick, do not worry. It can be cured. What do I need to do:
- carefully collect and burn diseased leaves;
- to conduct medical spraying of the bush with special preparations.
Than to treat patches of roses?
In addition to black spotting, the rose is ill with several more types of spotting. Treatment is the same for all types of diseases. Specialty stores offer a huge selection of drugs to treat these insidious diseases. But, guided by the reviews of gardeners, we recommend that you try a very effective
In the first week, spraying is used with preparations containing mancozeb, such as Gold, Profit.
After a week, spraying is done with preparations containing triazole (Skor, Topaz).
No more than three such courses are repeated.
Often inspect the bushes for signs of disease. It is always easier to prevent a disease than to fight it. Rose will thank you for your attention and care with a lush blossoming view.