Common problems with rose bushes and how to solve them

Rose bushes are beautiful flowers to decorate a garden, but are sometimes attacked by pests and diseases that should be resolved quickly. For the roses to always maintain a magnificent appearance, it is necessary that they are carefully treated. Know what are the most common problems affecting rose bushes and how to solve them.

Of the main pests and diseases that can affect rose bushes, the following stand out:

The Black Spot

In rose bushes, the Black Spot begins to manifest when the fringes of the smallest leaves acquire a black and brown color that will lead to their fall. Its main symptoms are revealed at the bottom of the plants and, over time, they eventually spread throughout the body. This fungus is very common in times of hot and humid climate and, as such, it is necessary to prevent it in a timely and convenient way.

How to treat the Black Spot

If your beds are affected, it is necessary to get rid of any leaves that may already be contaminated, so that they do not infect the rest. Afterwards, you should use a spray of sodium oil and spray the rose bushes in order to protect them and safeguard against other possible attacks.


Powdery mildew has spots of white filaments of fungi and spores that deform the leaves of plants , new shoots and the respective stems. It is a very peculiar fungus that strengthens with moist air but, unlike other fungi or diseases that affect roses, it needs dry foliage to settle and attack.

How to treat powdery mildew

To get rid of powdery mildew and properly care for the health of your plants, you must water them regularly. However, keep in mind that watering should be done from top to bottom, preferably in the morning, in order to remove all fungal spores and to reduce the possible infection as much as possible. For the most severe cases, it is necessary to apply a fungicide to the affected plants, such as triforine or benomyl. These products can be purchased in a greenhouse or in a specialized garden house and are easy to use.

The rust

The rust is a major problem that affects the health and well-being of a rosebush. It starts to be noticed when the leaves get small yellow spots on the sides and on its surface. In more advanced cases of rust, the yellow leaves fail to recover their initial pigmentation and end up falling off. Please note that hot days, cold nights and humidity encourage the appearance of this fungal disease that spreads through spores.

How to treat rust

When the leaves fall to the ground with rust, they should be collected immediately, otherwise the grass garden can be burned and the land cultivation can lose its main nutrients. To prevent this from happening, regularly maintain your garden and remove any leaves that show any signs of rust. During the growing season, you should apply a sulfur spray, a fungicide or an organic pesticide so that the plant can grow in a healthy and consistent way, without any trace of rust.

The aphids

Aphids are small clusters of green, red, pink or black insects that are found on the surface and on the sides of a plant’s new leaves and buds. There are about 250 different species and their form of action involves absorbing the sap of plants, serving as a vector for transmitting the virus.

How to treat aphids

Aphids are one of the pests that most concern farmers and foresters, since they directly affect the yield of plants, removing their sap. The health of the stems, leaves, flowers , fruits and roots is seriously compromised and a lot of damage can result. For heavier infestations, it is necessary to apply a strong jet of water or spray the plant with soap and water, in order to dislodge the respective pest.


Mites are practically invisible insects that are located at the ends of plants and, most of the time, their presence is only noticed by the existence of very delicate webs. Like aphids, they absorb the sap of plants and in doing so the leaves acquire a yellowish hue.

How to treat mites

Dust mites pose a major threat to human health, since they are primarily responsible for respiratory allergy conditions such as allergic rhinitis and asthma. In order for this not to happen, it is essential to spray the leaves of the plants with water early in the morning. For large mite infestations, it is necessary to spray the plants with a water and soap or summer oil insecticide.

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