What can I do if gooseberries are browned

Like any other garden plant that is planted with ignoring the recommendations and does not receive proper care, gooseberries begin to hurt and suffer from attacks of harmful insects. This is indicated by negative changes in its appearance, deterioration in the quality of the crop. Learn how to prevent problems with this berry crop and what causes brown plaque on the fruits, you will learn from the article.

Brown plaque on gooseberries: types of disease, main symptoms

A symptom such as a brown coating on the berries may indicate the development of several fungal diseases, in particular powdery mildew, anthracnose and rust.

Did you know? In Kievan Rus, gooseberries were grown earlier than in Europe and America. So, in the monastery gardens of Russia, this berry culture appeared in the 11th century, in Europe in the 16th century, and in North America at the beginning of the 18th century.

Powdery mildew - the last stage

Powdery mildew is a disease caused by the fungus Erysiphales. Gooseberries and currants are affected by American powdery mildew or sferotek. The first symptom of infection is the appearance on the foliage and shoots of a white dense coating, similar to flour. Often, it can also appear on flowers and fruits. The first manifestations can be noticed after flowering. Subsequently, the leaves are bent, the berries are formed small and covered with a brown felt coating. Bushes stop growth and die in the absence of timely treatment.

Favorable conditions for the development of the disease are increased air humidity (above 85%) in combination with a temperature of +20 to + 30 ° C, excessive application of nitrogen-containing fertilizers. The peak of the disease occurs in late July - early August.

The wintering of the pathogen occurs on the infected organs of the plant. When the weather is warm in the spring, the spores of the fungus contained in the bag are thrown out and carried by the wind in the area, settling on new media.

Did you know? In the twentieth century. due to the strong spread of powdery mildew in many countries, all gooseberry shrubs were destroyed. Thanks to the hard work of the breeders, some of the varieties were restored, but many of them disappeared forever.

Anthracnose

Infection begins with the formation of small brown spots (1 mm in diameter) with tubercles on the leaves. If at this time you do not notice the disease and do not start treatment, then it will develop further, affecting other organs of the plant - stalks, petioles. Leaves eventually spin up, dry out and fall off. Berries with affected stalks fall off. Small brown spots with a raised center are formed on the fruits. All this leads to a sharp decrease in the yield of gooseberries.

The causative agent of anthracnose is the marsupial fungus Pseudopeziza ribis Kleb. He hibernates on fallen leaves. Distributed in the summer. The spread is facilitated by humid weather, dense plantings, and weediness of the site. The first signs can be noticed after flowering. The peak of the disease occurs in July - August.

Since the first disease, as a rule, affects the old leaves, the symptoms first appear on the foliage located below. Find out when gooseberries begin to bear fruit after planting.

Gooseberry rust

Gooseberry bushes are affected by 2 types of rust: columnar and goblet. This fungal disease leads to the defeat of all the ground organs of the plant - leaves, shoots, flowers, ovaries, fruits.

The causative agents of rust are fungi from the genus Phragmidium or Puccinia. They are carried on plant debris, weeds, intermediate host plants (sedge). Its spores form in the spring, and then are carried by the wind, infecting large areas. The development of rust is facilitated by humid weather combined with hot temperatures.

When it gets on the gooseberry, spores begin to germinate, as a result of which rusty spots form on the affected organs of the plant, including the fruits. If the owner of the site did not find the disease on time, the death of the berry culture occurs. Learn how to deal with gooseberry lichen and moss.

Disease Control Methods and Prevention

If timely preventive measures are taken that will prevent the disease from entering the garden, as well as starting treatment as soon as possible in the event of the spread of the disease, then the plantings can be saved and a whole and high-quality crop is obtained. You can detect the disease if you often inspect the bushes.

Powdery mildew (sferotek)

Symptoms of the disease:

  • white coating on leaves, flowers, berries;
  • brown plaque on the fruits;
  • stunt.

Preventive measures:

  1. Planting varieties that are resistant to the causative agent of this disease. These, in particular, include Russian Red, Kolobok, Grushenka, Senator, Yubileiny.
  2. Proper autumn tillage: thorough harvesting of plant debris, deep digging, pruning and burning of diseased branches.
  3. Conducting annual autumn top dressing with phosphorus-potash fertilizers.
  4. Early spring treatments with copper-containing agents (colloidal sulfur, vitriol, copper chloride), copper sulfate, Bayleton, Quadris, Skor, Topaz, Fundazole. They are made 2 times: before flowering, after flowering, before leaf fall.
  5. Watering the spring in the near-stem zone with boiling water, plants - with water, heated to a temperature of + 45 ... + 50 ° С.
  6. Acquisition of seedlings only from trusted sellers.
Important! Work with chemicals must be carried out on a day when there is no strong heat, the sun is hidden behind the clouds, there is no precipitation and wind. You can also carry it out in the evening, after the sun sets over the horizon .

Ways of treatment:

  1. Removing diseased branches and shrubs. Destruction of them by burning.
  2. The use of a mixture of aspirin (1 table) with soda (1 tsp), liquid soap (1 tsp), sunflower oil (1 tsp) diluted in water (4 l). The frequency of spraying is 1 time in 2 weeks during the growing season.
  3. Sprinkling to flush the pathogen from the plant.
  4. The use of ash broth, prepared by boiling for half an hour 2 kg of wood ash, mixed in a bucket of water.
  5. Processing soda ash: pour 50 g into hot water and mix, add 50 ml of liquid soap, 10 l of water. The treatment period is before and after flowering.
  6. Treatments with sour milk or kefir: 1 liter dilute 9 liters of water. The frequency of spraying is 3 times, taking breaks of 3 days.
  7. Application of onion infusion: place 200 g of husk in 10 l of boiling water, leave for 2 days. To process 3 times per season: before flowering, after the flowers fall, before the leaves begin to fall.

Anthracnose

Symptoms

  • brown spots on leaves, stalks, petioles;
  • brown spots on the fruit

Preventative measures

  1. Planting varieties that have strong immunity and are well resistant to the disease, namely: Fantazer, Ural pink, Shershnevsky, Senator, Ark, Vladil.
  2. Cleansing the site of plant debris in autumn.
  3. Conducting every spring, before buds are opened, sprayed with Nitrafen, Bordeaux fluid

Learn about using Topaz Fungicide to treat gooseberries.

Treatment methods

  1. Removal of affected leaves and shoots.
  2. Two treatments with Phthalan, Kuprozan, Khomitsin, Kaptan, Khom, Fundazol, Bordeaux liquid, colloidal sulfur, copper sulfate after symptoms were detected and 10 days after removing berries from the bushes.

Rust

Symptoms

  • yellow, orange, rusty spots on leaves, shoots, flowers, ovaries, fruits;
  • leaf fall;
  • underdevelopment, drying out of fruits

Preventative measures

  1. Conducting in the spring, before the start of the growing season, spraying with Bordeaux liquid, “Fitosporin”.
  2. Planting varieties resistant to pathogenic fungi: Cooperator, Gingerbread Man, Consul, Commander, Salute, Beryl.
  3. Planting bushes away from sedge.
  4. Timely conducting weeding.
  5. Three-time spraying with Bordeaux liquid: before the leaves appear, during the budding period, after the flowers fall.
  6. Conducting regular feeding.
  7. Moisturizing without dropping moisture on the ground part of the plant.
  8. Autumn cleaning of the site from plant debris.
Important! In order to detect the disease in time and start treatment, the gooseberry planting should be well examined at least 1 time per week. The detection of the disease at the initial stage allows you to save plants and crops.

Treatment methods

  1. Removal and burning of affected parts.
  2. Chemical treatments “Abiga-Peak”, “Topaz”, “Hom”, Bordeaux liquid, copper sulfate in combination with green soap (25 g / 400 g / 10 l of water).

So, mistakes during planting and care can lead to the occurrence of diseases in gooseberries. It is important to establish the cause in time and begin treatment. In order to prevent the development of diseases, it is necessary not to ignore the implementation of preventive measures.

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