Flowers, herbs

Rust on roses: how to process, control measures, drugs and folk remedies

Anonim

Beloved roses fell ill, the stems cracked, the leaves began to curl. An insidious type of fungal disease that affects all types of flowering plants can cause irreparable harm to your favorite rose garden. What to do if signs of rust appear on roses, how to process and how to avoid rust? Consider the methods of combating a fungal infection with folk methods and a method of treatment with fungicides.

Why does a rose get rusty?

Weakened plant immunity, poor-quality unsystematic plant care, lack or excess of fertilizers, bad weather conditions are prerequisites for outbreaks of fungal diseases in rose gardens.

The fungus of the genus Phragmidium disciflorum spreads quickly, often roses pick up an infection from other diseased plants in the garden, disease-causing spores are carried by the wind, enter the soil with water.

Important! When the first signs of the disease appear, it is necessary to sound the alarm, treat the affected bushes with fungicides. Folk remedies are used as a prevention of the disease.

After processing the leaves, stems and buds of plants, the soil must be disinfected, if possible, it is recommended to replace the upper part of the soil.

Never put fresh manure under roses as organic fertilizer. The bush can get burnt from a large amount of nitrogen, the risk of rust increases.

Which types of roses are most affected by the disease?

All types of roses are affected by the insidious fungus: tea, climbing, park, species roses based on wild rose. The disease does not spare the plant, with advanced variants of the disease, the plant has to be removed.

Breeders every year improve varieties of roses. For beginners, when choosing flowers, it is recommended to give preference to varieties that are resistant to rust and other types of fungal diseases. A list of them can be found in the description of the variety on the package.

Signs of rust

An experienced gardener regularly inspects flower beds for the first signs of disease or insect pests. Rust is easy to identify, the disease has the following symptoms:

  • Bright orange spots and specks appear on the leaves, stems, buds of roses.
  • The plant slows down the growth rate.
  • Part of the buds are deformed.
  • Leaf plates turn yellow and fall off.
  • The stems are cracking.

The first signs of infection can be seen already in the spring in mid-May. The fungus lives on roses all season. In autumn, with the advent of the first cold weather on the surviving bushes, the orange coating of rust changes its color to black.

Measures to combat the problem

When a fungal attack appears on a plant, treatment should be started immediately. First of all, it is necessary to find out the causes contributing to the development of the disease, and, if possible, eliminate them.

Remember that when treating rust, it is necessary to treat not only the upper part of the plant, but also to disinfect the soil. In autumn, it is recommended to remove the top layer of earth under the infected shrubs, adding instead a clean fertile soil consisting of a mixture of black soil, sand and wood ash.

Folk remedies

The problem of fungal diseases of ornamental flowering shrubs has been known to gardeners for a long time. Folk remedies are used as preventive measures and a small area of infection.

Nettle infusion

A weed grows on any garden plot - nettle. This plant can become useful, on the basis of burning grass, an infusion has been made since ancient times that can fight rust on roses.

The collected nettles are crushed and poured with boiling water at the rate of 10 liters of water for half a bucket filled with chopped nettles. The mixture stands for two days, then the infusion must be filtered and used for spraying. If necessary, repeat the procedure.

Infusion of wormwood

Wormwood is a little more difficult to find on the site, this grass is more common in the fields, but for 10 liters of water it will take half as much as nettle. Wormwood is crushed, poured with boiling water and insisted for a day. The infusion is filtered and sprayed with diseased roses. It is recommended to treat the soil under the bushes by watering the roses with the remaining solution.

From tea with vodka

To create a cure for rust, you can use an infusion based on tea with vodka.To make it, you need to prepare a strong brew of black tea and add a small amount of alcohol or vodka to it, mix thoroughly. The leaves and stems of diseased plants are wiped with cotton pads with this solution. Suitable for indoor roses.

Baby or laundry soap

This solution is easy to prepare. Two bars of laundry or baby soap are rubbed on a grater, the chips are dissolved in 10 liters of warm water. You can apply the product to plants by spraying or with a cotton swab. It is recommended to spray the soil under the infected flower. The procedure is carried out several times with an interval of 3-4 days.

Fungicide treatment

You can get rid of rust on roses by using fungicides. The use of chemicals is justified in case of a large focus of the disease and if folk remedies did not help.

Falcon

Fungicide, produced in the form of a concentrated emulsion. Manufacturer German company Bayer. The active substance is spiroxamine. Able to inhibit the action of mixed infections. Means are applied to the affected plants according to the instructions. It is enough to carry out a single treatment per season.

"Falcon" is an economical tool with low consumption. Protects plants from fungal spores throughout the growing season. Not dangerous for humans, bees and small animals.

Strobe

A new generation broad spectrum fungicide. Refers to biological products that are safe for humans and bees. The active substance is kresoxim-methyl. The high efficiency of the drug was noted when applied to wet leaves.

Bordeaux liquid

A time-tested remedy against fungal diseases of ornamental, fruit and vegetable plants - a mixture of copper sulfate and slaked lime.It is used against rust, gray mold, coccomycosis and other fungal diseases. Roses are treated with Bordeaux liquid in spring and late autumn. The product is applied to the leaves and stems of plants.

Topaz

Systemic fungicide. Refers to long-acting preparations, it is enough to process roses once a season. The product is quickly absorbed by the plant, the drug is safe for humans, bees, small animals.

How to prevent rust on flowers?

Roses are ornamental flowering plants susceptible to infection by various fungi, in particular rust. To prevent the development of rust in rose gardens, it is recommended:

  • Cultivation of rust resistant rose varieties.
  • The right choice of location and soil for the flower bed.
  • Prophylactic treatment of bushes with fungicides in early autumn and before the onset of winter.
  • Sanitary pruning of roses.
  • Control the amount of nitrogen fertilizers and fresh organics.
  • Timely detection of the first signs of the disease.
  • Maintain the required level of soil moisture.

With the right choice of location and respect for flowers, growing prickly beauties will become a favorite and hassle-free business.

Blossoming he althy roses will reward the gardener with their fragrance and neat appearance for the work invested.

Resistant varieties

Thanks to the efforts of breeders, picking up varieties of roses with immunity to rust is easy, just read the description of the variety. The manufacturer will always emphasize the plant's ability to resist fungal diseases in the merits of the species.

For example, the following varieties should be distinguished from hybrid tea roses:

  • Elina;
  • La Perla;

Popular floribunda varieties with strong immunity:

  • Morena;
  • Rosenfee;
  • Goldelse.

Of the climbing varieties, it should be noted:

  • Santana;
  • Aloha;
  • Belcanto.

When forming a rose garden, it should be remembered that even modern varieties with increased immunity to infections can get sick if the plantings are not cared for. Carry out preventive treatments of plantings, carry out systemic care of plants. When the first signs of infections are detected, the bushes are treated.

In the early stages of infection, rose bushes can be saved.