Content
Barberry is a garden plant that is used for fruit and ornamental purposes. The shrub is unpretentious, easy to care for, but it is susceptible to pests of fruit and berry plants. Diseases of barberry and the fight against them, photos of lesions are presented below, begins from the moment the bush is planted.
Reasons why barberry dries
If everything is in order with watering in the personal plot, pests or diseases can cause the barberry to dry out. Most often, the leaves dry out and crumble when the bush is affected by aphids. This pest literally sucks out all the juices from the branches of the plant.
Another reason for the drying out of the shrub can be a fungal infection. There are several types of them. Each one manifests itself in its own way. If the leaves of the plant are damaged, tracheomycotic wilting can be suspected. It is a fungus that destroys the root system. The shrub loses its natural nutrition and begins to dry out. Leaf diseases in barberry are common.
Why barberry does not bloom
The reason for the lack of flowers on the barberry in the spring can be the winter freezing of the buds. Over-watering can also cause this condition. With excessive moisture in the soil, a fungal disease is suspected. It develops in soils where there is stagnant water. Therefore, before planting, it is important to drain the crushed stone hole in the hole. After watering, it is important to fluff the soil well.
Young plants that have not adapted to a new place may not bloom. Good rooting of a seedling does not mean that the shrub has taken root. He needs time.
To exclude diseases and attacks of pests, the bush is carefully examined, if there is no damage, another reason should be looked for.
Aphids and caterpillars can damage the peduncle in the bud. Aphids are an aggressive pest that sucks out all the juices from the bush, and they do not have the strength to fight and bloom.
Diseases of barberry shrubs and their treatment
Often, barberry is used as an ornamental plant that grows well and blooms luxuriantly. But it is susceptible to fungal diseases, which greatly reduces its decorative qualities.
At the slightest damage to shoots or buds by pests, flowering will not occur. Most diseases affect the leaves and branches of the tree, less often the root. At the same time, the foliage turns yellow and crumbles, the branches dry and wither. Such a plant does not have any decorative function.
Powdery mildew on barberry
The common barberry is more susceptible to this disease than any other species. In the middle of summer, a white, mealy bloom appears on both sides of the barberry leaves - this is how the mycelium is formed. As it develops, it becomes denser and covers the entire surface of the leaf and shoots. If you do not apply well-known methods of combating fungal diseases, the mycelium will cover the entire shrub.
Traditional methods of dealing with the fungal disease of barberry are simple. In early spring, until the buds swell, the bush is evenly poured with boiling water.The plant should be watered carefully so that the liquid gets on each shoot and twig.
Another effective method of combating fungal diseases is spraying with a soda-soap solution. It is prepared as follows: 0.5% soda ash and 40 g of soap are diluted in 10 liters of water. These shrubs are sprayed with this solution 3 times per season.
Spraying with modern insecticides is considered the next effective method of combating powdery mildew. The most famous and affordable drug is Bordeaux liquid. The plant is processed in early spring and late autumn.
Rust on barberry
Barberry disease - rust appears as bright orange spots on the leaf surface. On the reverse side, you can see a convex, yellow-hot formation - mushroom spores. The fight against this disease begins as early as possible.
Effective control methods: cutting off and burning affected leaves, spraying the bush with fungicides and Bordeaux liquid. Her plant is treated immediately after the appearance of the leaves, then 2 more times at intervals of 1.5 weeks.
Spotting
Barberry is ill with all varieties of spotting: gray, white, brown and others. This disease manifests itself on the leaves in the form of rusty or brown spots, resembling burns. Sometimes the spot on the barberry looks like a white bloom. When the entire plant is affected by the disease, it looks like a dead shrub. It is not immediately possible to determine the cause.
Fungicides are considered an effective method of combating all types of spotting. Modern drugs quickly and easily destroy the disease.
Fruit shrubs are sprayed with substances containing copper, or alternative methods are used to combat spotting.
Drying of the bark and crown
The disease is manifested by cracking and falling off of the bark. The crown turns yellow and dries up. At the site of cracking of the bark, spores of fungi appear. These areas must be urgently removed so that the plant does not die. Only the lower part of the bush with shoots and buds is left.
Control methods: the affected branches are cut off, the cut sites are treated with garden varnish. The whole bush is treated with copper sulfate. It is sprayed, carefully and thickly sprinkling each shoot and leaf.
Bacteriosis
The disease on the Thunberg barberry and its other species is manifested by dark spots that form on young shoots and leaves of a shrub. Later they die off, and swelling appears at the site of the lesion. To combat bacteriosis, cutting off the affected areas and burning them is used. Buying a healthy seedling in a nursery is a good prevention of dysbiosis disease.
The treatment is carried out by spraying. For this, copper oxychloride (40 g) is diluted in 10 liters of water. The shrub is treated with this solution twice a season.
Pests of barberry and how to deal with them
Decorative and fruit barberry is a real treat for insects. The juice of its shoots attracts pests to the garden. Yellow leaves covered with holes and spots, damaged shoots of a plant are a sign of not only disease, but also insect damage. When the first signs appear, pest control begins. This is the only way to save the plant.
Methods of dealing with caterpillars on barberry
Yellow, twisted, falling leaves are a sign of damage by caterpillars, scale insects, sawfly. Pest control is carried out using folk and chemical methods.
To prevent the appearance of caterpillars, pruning of the bush is carried out in a timely manner. The affected leaves are burned.
Fall pruning and spraying is important. Caterpillars often leave larvae under the bark and in barberry leaves for wintering. Summer spraying is carried out a month before the ripening of the fruits of the bush. An effective means of fighting caterpillars is Chlorophos.
From the folk methods of pest control of this culture, spraying with wormwood tincture can be distinguished. You can also get rid of insects by fumigating.To do this, lay damp straw next to the bush, collecting it in a heap. 5 kg of tobacco is poured on top and set on fire. The duration of the procedure is 1 hour or a little more. Plants are fumigated in calm weather. They try to get the smoke on the infected bush.
Aphid control methods
Dried and twisted leaves, deformed shoots are a sign of aphid damage to barberry. The insect settles on the lower part of the leaf near the cutting. In a short time, it gives numerous offspring. Aphids suck the sap from the plant, and it dies. Already in early spring, these insects can be seen on the buds of the bush. Below is a photo of the barberry pest and the signs of the disease that it causes.
Folk recipes for combating aphids on barberry:
- spring treatment with a solution of laundry soap;
- spraying with garlic infusion;
- processing the plant with tincture of tobacco or horse sorrel.
The modern effective method of pest control is considered to be spraying the bushes with sulfur-containing preparations: Fitoverm, Aliot, Kinmiks.
Preventive measures to prevent diseases and pests of barberry
Most varieties of this crop are resistant to diseases and insect attacks. Improper care, irregular watering and pruning make the plant vulnerable to various kinds of diseases. The fight against them begins with the right prevention.
Mushrooms appear on moist, acidic soils. Good drainage and ash fertilization of the shrub will prevent the growth of mycelium.
For planting barberry, only proven seedlings from nurseries are used. This way you can avoid buying a sick plant infected with a fungus.
Rules for the prevention of diseases of yellow barberry and other types:
- Shrubs should not be planted close to each other. When planting, follow the recommendations of agricultural technicians on the location of plants.
- In humid climates, the garden should be well ventilated. Misting of the root system and trunk circle should be avoided.
- To prevent the fight against fungal diseases, the drying of the barberry root is avoided. So he becomes vulnerable to fungal diseases.
- Periodic feeding of the crop with mineral and organic fertilizers increases the plant's resistance to diseases and pests.
- Spring and autumn sanitary pruning prevents insect larvae from multiplying in the bark of dead shoots.
- Regular inspection of the shrub will help to identify the disease at an early stage and begin to fight it in time.
Autumn cleaning in the garden is one of the methods of preventing diseases of the bush plant. Fallen leaves and cut branches of a bush are raked into heaps, and then burned. Harmful insects lay their larvae in plant debris, and in spring, young growth destroys garden plants. Thus, they will have nowhere to spend the winter.
Conclusion
Garden diseases of barberry and the fight against them, a photo of a healthy shrub is presented below, should begin in the fall.
After harvesting, they destroy wilted plants in the garden, prepare the shrub for winter. How the plant overwinters depends on its health in the new season. Insects are destroyed even before flowering, so as not to interrupt the fruiting of the culture. Pest and insect control should begin immediately at the first sign of damage to the plant.
