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Growing a cherry orchard sometimes causes difficulties even for experienced gardeners. In anticipation of the lush spring flowering of cherries, they unexpectedly encounter the problem of buds that have not blossomed. Cherry does not bloom its leaves, what should I do?
In order to avoid disease and death of the plant, it is necessary to choose zoned varieties. The main reasons why leaves do not bloom on cherries:
- improper fit and care;
- weather and climatic factors;
- verticillosis;
- moniliosis.
Planting and caring for cherries
In order for the tree to bloom, it is recommended to follow the rules of spring planting of cherries:
- At the beginning of planting, you should choose the right seedling variety, preferably zoned.
- Prepare a planting pit, the depth of which should be about 80 cm, and the width - up to 1 m.The soil (2 buckets) is mixed with humus (35 kg), ash (1 l), superphosphate (3 kg), potassium fertilizer (1 kg) and fall asleep in a depression with a slide. A peg is inserted.
- A young seedling is placed on a mound, the roots are spread and covered with soil.
- Flowering and fruiting is affected by the correct deepening of the root collar of the seedling. It is necessary that it is 5 cm above the ground level.
- Then a roller is formed around the tree, 14 liters of water are watered, mulching with humus or peat is carried out.
Leaves do not bloom in spring
Gardeners may face the fact that cherries do not bud, even if they were planted only last year. There are 2 reasons why this happens. The most common prerequisite is cultivation mistakes. It is worth analyzing your actions and determining where the mistake was made. Then make sure the cambium is still alive and can be resuscitated. If not, then you will have to plant a new tree, but according to all the rules.
The second reason that the buds of the sweet cherry did not bloom is the winter freezing of the root system, crown and trunk. The problem can arise not only in young seedlings, but also in mature trees. For cherries, severe frosts are not as dangerous as sudden changes in temperature. The tree can freeze and get sick due to daily temperature fluctuations in the range from 7 to 20 degrees. It happens that buds that have begun to swell begin to fade after 2 days. Last year's nutrients accumulated in the trunk and branches have run out, and new ones are not supplied due to freezing.
Freezing can be diagnosed using transverse and longitudinal cuts in the branches and roots. Cambium and bark color is a symptom of a problem:
- light brown - the tree can still be reanimated;
- dark brown - a significant degree of freezing.
Cherry resuscitation measures include proper pruning and spraying the branches with ice water. This must be done before sunrise. Such a measure will allow to get a harvest even this year. With significant freezing of cherries, there is no chance of getting a harvest.You will have to plant a wild game or grow a new tree from dormant buds located on a trunk.
The ovary falls off the cherry
The tree begins to lose the ovary due to improper care, which requires an integrated approach to solving the problem. They begin to fall off en masse for several reasons:
- Overly acidic soil. At a distance of 1 m from the center of the trunk circle, 400 g of lime or dolomite flour are introduced for each square meter.
- Nutrient Deficiency. In the spring and summer seasons, the minimum amount of fertilization is three times. It is necessary to apply a complex mineral fertilizer - 50 g per square meter, alternating with mullein (bird droppings) infusion - 2-3 buckets with abundant watering. One of the dressings should be carried out immediately after the cherry blossoms. In the fall, the tree needs to be given potassium and superphosphate.
- Overly thickened crown. In the spring, before bud break, you need to prune. Old and inward-growing branches are removed to allow sunlight to pass through the middle of the crown.
- Self-infertility. Such varieties of cherries need the proximity of other varieties that are pollinators.
- Exhaustion. Too rich harvest can deplete cherries, and she will not have enough strength to plant new flower buds. Therefore, after harvesting the fruits, it is necessary to fertilize and water the tree thoroughly. Autumn feeding is required: humus (15 kg), superphosphate (300 g), potassium (100 g) per square meter. The mixture is applied at a distance of 50 cm from the trunk, at the location of the suction roots.
- Dry period. If the spring is dry, don't let the plant dry out. The cherry should be watered during and after flowering. It is recommended to apply nitrogen fertilizers at the same time.
- Groundwater. Sweet cherries will wilt when groundwater is located too close, less than 1.5 m.
- Lack of pollination. Prolonged rainy weather can cause the disappearance of pollinating insects. Pollen retains the ability to fertilize for 3-5 days. It is necessary to spray trees with honey water (100 g of honey, sugar per 1 liter of water) to attract bees. In extreme heat, pollen can dry out, its properties will be lost.
If the dried cherry gave shoots
The shoots belonging to the graft grow above the graft site. They can be used to propagate cherries. If the shoots appear below the grafting site, then they belong to the stock. The chances that it can make a full-fledged cherry are small. Most often, a wild variety grows with tasteless fruits.
Weather and climatic factor
A great influence on the fact that leaves, buds do not bloom on cherries, fruits fall off, weather and climatic factors have:
- falling of ovaries occurs with an unexpected spring cold snap, winter freezing;
- falling flowers and fruits occurs when the wind is too strong;
- fungal infections infect a tree with excessive moisture;
- during drought, the soil heats up greatly and can scorch the root, from a lack of moisture, the leaves of the cherry wither, and then fall off.
Gardeners may face such a problem - cherries do not release their leaves in spring. The kidneys may swell but become dry immediately afterwards. This sign indicates the freezing of the root system in winter and the death of the buds. This happens especially often in the 1st winter. The frost resistance of sweet cherries is reduced due to abundant feeding in the fall, shoot growth.
How to save cherries from drying out after winter? For the winter, it is necessary to form a high earthen roller around the tree, water thoroughly (about 40 liters of water), mulch the trunk circle, and cover the tree. You can try to treat and revive the cherries. Experienced gardeners advise pruning the crown to the first outer bud. Then you need to spray with a solution of Bordeaux liquid, to which it is recommended to add nitrogen fertilizer.You can water the roots with an aqueous solution of ammonia (2 tablespoons per bucket of water), spray the foliage with Epin.
What if the cherry dries
Many gardeners complain that cherries are drying up, what should be done in this situation? The cause is verticillosis, an infectious wilt characteristic of stone fruit crops. There are 2 forms of the disease:
- in the acute form, wilting and drying occurs within 8-10 days;
- in the chronic form, dying off lasts several years.
Plants of any age are susceptible to the disease, but young trees, aged from 3 to 10 years, are most vulnerable.
Signs
Verticillary wilting of sweet cherry has the following features:
- blackening of the tips of the apical buds 1-2 weeks before flowering;
- discoloration, twisting, oppression and fall of foliage (sometimes leaves continue to remain in place even after leaf fall);
- fruit branches die off, tops of heads dry out, skeletal branches die;
- fruiting continues, but the berries become small and tasteless;
- wood tissue smells like fermented sap;
- forks and skeletal branches are covered with rusty-brown spots, depressed stripes are observed;
- gum oozes from under the spots;
- on the transverse and longitudinal section of the stem, the blackness of the wood is noticeable - darkening of the xylem ring and core.
Plant tissue necrosis occurs as a result of exposure to toxins secreted by the causative agents of the disease - fungi. Their habitat is the dead plant remains. Fungi penetrate into the vascular system of cherries through damage to the roots.
Infection can occur throughout the growing season. The most favorable moment for the penetration of fungi is the phase of intensive growth of the tree in May and June. Due to the high moisture content of tissues, fungi easily penetrate and spread through the vessels from roots to young growth. The causative agent of the disease has a high degree of harmfulness, since it can cause the death of a tree in a short period of time (2-3 years), sometimes in one season.
Fighting verticillary wilt
Cherry does not bloom its leaves, what should I do? To reduce the risk of contamination of cherries, the site should not grow susceptible crops. Solanaceous plants, vegetables, melons, strawberries, sunflowers - all of them can become a source of infection. The composition of the soil is very important, the tree needs good aeration of the root system. The risk of contamination increases on clayey, saline, saline soils, with a close occurrence of groundwater.
Autumn planting of cherries is recommended, the root collar should be 4-5 cm from the soil surface. To prevent bacteria from developing, formative pruning is done during the hot season: from the last days of May to early August. Mandatory precautions:
- processing of cutting tools with 10% solution of copper sulfate (formalin, carbolic acid);
- processing of cuts with garden varnish (you can use oil paint).
But pruning too much can reduce disease resistance by over-increasing growth.
The cherry root system must be protected from mechanical damage during soil cultivation. It is recommended to whitewash the trunk and bases of the skeletal branches to avoid sunburn and frost damage. Whitewashing composition: add 2% copper sulfate to a 20% lime solution. The gum-cutting wounds are cleaned and covered with the composition: 1 part of clay, 1 part of mullein, add a 2% solution of copper sulfate.
How to save cherries from drying out? It is required to carry out a number of treatments using special preparations:
- in the spring, it is necessary to destroy the causative agent of the disease on the apical kidneys, therefore, spraying with 3% Bordeaux liquid or Cuproxat is carried out;
- at the end of flowering, the tree is sprayed with preparations: Polychom (40 g), Ridomil (40 g), Kuproksat (35 ml), Polycarbacin (40 g);
- the processing is repeated in the last days of July, early August;
- in August or September, after rains, cherries are sprayed with 1% Bordeaux liquid, Cuproxat;
- the procedure should be repeated twice more in October, with a break of 15 days.
To avoid the occurrence of verticillary wilting, one must be wary of excessive use of unripe manure and nitrogen fertilizers. To increase the resistance of cherries, phosphorus and potash fertilizers should be used more.
If the tree cannot be cured, then it must be uprooted and liquidated. Disinfect the pit with Carbation (0.2 g per 1 sq. M.). New seedlings can be planted after 1.5-2 months.
Sweet cherry loses leaves and berries
Monilial burn (gray rot) is a fungal disease that affects the entire tree during its flowering period completely. The spores of the fungus penetrate the flower pistil and grow into the tree. The wood begins to dry out due to the toxins released by the fungus. Moniliosis causes the cherry to dry after flowering, the berries rot and fall off. Typical signs:
- drying of leaves, shoots and branches;
- a small brown spot develops on the fruit, and after 10 days the whole berry is covered with it;
- falling leaves, flowers, fruits;
- berries not fallen from the tree become hard, begin to turn black;
- the brown color of the dried parts of the plant resembles a burn;
- in damp and cold weather, a moldy gray coating on the shoots and flowers is noticeable, dusting when dry.
The fight against moniliosis begins with cutting off the affected branches. The cut should take place with the capture of 10 cm of a healthy part of the wood, as it may contain fungal spores. The removed parts of the cherries must be burned, and the cut sites must be disinfected. Then sanitary pruning of the crown is carried out to enhance aeration. Slices must be treated with garden pitch. Immediately after flowering, as well as a month later, cherries are sprayed with copper sulfate (100 g per 10 liters of water) or 1% Bordeaux liquid.
Sweet cherry is losing foliage
Cherry dries, what should I do? The reason for the falling leaves on the cherry can be the effect of insect pests:
- Severe damage to black aphids feeding on the juice of barely blossoming buds, leaves, ovaries. Cherry leaves curl, dry up and wither. The tree starts to die pretty quickly.
- Hawthorn. The exposure of the cherry crown is due to insect caterpillars, which are able to eat leaves, buds, buds, flowers.
- Pear and cherry pipe-runner. Lays eggs in cherry leaves, which is why they curl up into a tube, begin to dry out, and crumble. The larvae that appear eat the leaves.
- Often gardeners are faced with the fact that the leaves wither, and then the cherry seedling dries up, what should I do? May beetle larvae eat the roots of young as well as adult trees. Cherries can dry out in just a season.
- Ringed silkworm. Caterpillars feed on buds, young leaves, creating spider nests in the forks of branches.
To avoid the laborious treatment of diseased trees, you need to follow the rules for planting and caring for cherries, as well as preventive measures. The affected parts of the plant must be destroyed. Timely measures taken by the gardener increase the chances of saving the crop and the tree itself.
I have already tried to transplant cherries in the spring that have grown by self-sowing from seeds. It always hindered what was done when the leaves had already blossomed. Although, as I recently read, it is possible to do this in the summer, the main thing is that with a sufficiently preserved root there is enough saved soil, and when the diameter of the seedling is not more than 1-3 cm, then the soil is optional.But at the end of the last prolonged warm autumn, which turned into a very mild winter, in November I transplanted a couple of cherries. I was glad that the buds appeared in the spring. But leash in one cherry, in April these small leaves blossomed, and in the other two - leash blossomed somewhere on… More details »