How to treat thuja with Bordeaux liquid. Common thuja diseases and ways to deal with them. Proper care of the thuja is the key to the health of the tree

In landscaping a personal plot, thujas occupy a leading place among ornamental coniferous plants. Varietal diversity allows you to create hedges, decorate alpine slides, build ensembles from single or group landings. An important point content from the moment of planting in the spring is competent feeding of thuja. Mistakes in the application of mineral and organic fertilizers can destroy plants. How to determine what conifers need, what measures to take?

How to determine what is missing thuja

Like other plants, thujas need a balanced diet. In order to ensure it correctly, you should know what signs correspond to the lack of one or another microelement in the soil.

Do not forget that an excess of any of the necessary substances is even more harmful than its deficiency. This is especially true for nitrogen. Excessive nitrogen content in the soil of the near-stem circle leads to increased growth of young shoots during the growing season. Such branches do not have time to mature before winter, do not become woody and freeze.

What and when to fertilize

Starting from planting (for better rooting and adaptation in a new place), and throughout the entire period of active growth (to form a healthy skeleton and lush crown), thujas need regular feeding mineral and organic fertilizers.

Coniferous trees and shrubs are able to extract everything they need from the soil on their own only in adulthood after the final formation of the root system. But even then, from time to time, we feed our evergreen pets so that they do not suffer from natural soil depletion. This should be done less frequently than during the period of active growth, but throughout the life of a tree or shrub.

Surface application of complex fertilizer in the root zone of arborvitae

Let us consider in more detail the better to feed the thuja, how to do it correctly, what frequency should be observed.

Fertilization at planting

So, the first, most important introduction nutrients occurs during the planting of young thuja. Good nutrition at the start is provided by adding ash and organic matter - compost or rotted humus - to the planting pit.

For a hole with a diameter and depth of 1 m, you will need about two buckets of organic matter and 3 kg wood ash. The ash is evenly distributed along the bottom, the compost is mixed with the ground for backfilling.

If a landing pit was prepared properly, the necessary complex of fertilizers was introduced, more this year additional dressings are not carried out. Do not forget that an excess of minerals is harmful to thuja no less than their lack.

Top dressing in the spring

The first fertilization after planting is done next spring. Further, spring top dressing becomes permanent element in the care of thujas. It is held from the beginning to the end of March, depending on the climatic region.

During this period, the main minerals that thuja need are:

• Nitrogen.
• Phosphorus.
• Potassium.
• Calcium.
• Iron.
• Magnesium and others.

Tui top dressing in the spring includes superphosphates, ammonium nitrate, mixtures containing potassium and magnesium, calcium preparations, complex long-acting fertilizers. One of the best sources calcium and useful organic matter is bone meal.

If young thujas did not survive the winter well, suffered from frost, received wind or sunburn, root stimulants are used to help the plants get stronger. It could be Kornevin or Agrekol.

Autumn top dressing

The foundation autumn feeding thuja is laid in the summer. Stretching measures for the introduction of trace elements under coniferous trees and shrubs for September, the beginning of October is allowed only for southern regions with a mild climate and a late onset of the winter dormant period.

Biohumus-based preparations, as well as complexes that provide both nutrition and protection against fungal spores, become a good addition to the “diet” of coniferous plants in summer:

• Fitosporin-M.
• Fitosporin-K.

The latter preparations additionally contain magnesium and potassium, according to the letter index.

Depending on the form of release, the working solution is prepared as follows:

• Powder. For 10 liters of water take 5 g of the drug.
• Paste. For 10 liters of water - 3 teaspoons.

The treatment of conifers with Fitosporin is carried out in the spring by spraying or watering the root zone. Irrigation is carried out twice with an interval of 14 days in dry weather and 7 days in rainy weather. Watering is also done twice with an interval of 1 month. Thus, you will protect your thujas from fungal diseases and feed them with the necessary trace elements.

In addition, in summer, helping thujas during the heat becomes especially relevant. Even spraying with ordinary water in the evening greatly helps to avoid drying out of the needles and burns. And if you dissolve Zircon or Epin in water, we get an effective anti-stress cocktail.

IMPORTANT! Do not use nitrogen-containing top dressings in the summer. They must be submitted no later than March.

How to fertilize correctly

To get the most benefit from the use of nutritional formulations, you should follow a number of simple rules:

• breaks between top dressing with different microelements should be two weeks;
• with the onset of autumn, the introduction of all types of minerals and organic matter stops (with the exception of the southern regions of the country);
• it is impossible to water the dry soil of the trunk circle with nutrient compounds. The day before the feeding of the thuja, it is necessary to pour water;
• do not use different complex preparations containing the same microelement, its overabundance may occur.

IMPORTANT! Apply top dressing no later than the end of August. Untimely stimulation of vegetation will adversely affect the wintering of plants.

There are two main ways to feed thuja:

1. Introduction under the root.
2. Top dressing.

Let's consider both options in more detail.

Introduction under the root

Both liquid nutrient formulations and dry ones are applied under the root. One of the best views organics for our species of conifers is compost. In dry form, they cover the near-stem circle with a layer 3-5 cm thick, and then gently mix it with the upper soil ball without damaging the thuja roots. Bone meal and humus are used in the same way.

For conifers There is a wide range of extended release granular fertilizers. Being introduced at the beginning of the season, they contribute to the rapid growth and growth of the lush green mass of shrubs throughout the growing season. Well proven drug Fertik "Coniferous for evergreens - Spring" containing water-soluble calcium.

When distributing granules around plants, do not go beyond the crown projection and do not approach the trunk closer than 15 cm. For large specimens, the amount is calculated based on the crown projection area.

Water-soluble preparations such as ammonium nitrate, superphosphates, liquid formulations based on biohumus, diluted with water before use according to the instructions on the package.

foliar top dressing

In addition to fertilizing the soil of the near-stem circle, arborvitae respond well to foliar feeding. For example, they can and even need to, during a hot summer period, spray with drugs such as Epin, Zircon. These are well-established growth stimulants that simultaneously reduce stressful conditions in plants during adverse conditions. Other similar complexes are also on sale.

The scaly thuja needles open up when irrigated and well absorb nutrients from water sprays. outside root top dressing they begin to carry out from the end of April, the beginning of May. Here, too, one cannot overdo it, it is better to observe the frequency of 1 time in 2 weeks, the treatment is carried out up to three times.

Even on poor, infertile soils, thuja can be grown, creating beautiful compositions and hedges from its various varieties. Timely feeding, selection of a competent combination of the required microelements and calculation of their quantity will help you admire the lush green needles on your site.

landscaping in landscape design plays one of the key roles. Coniferous and cypress trees and shrubs are loved by gardeners and designers for their color consistency, variety of shapes, versatility and functionality. One of them is thuja - a luxurious southern guest, which, with proper care, is able to endure all the hardships of the contrasting climate of the middle latitudes and create a special mood of positive, peace and stability. This evergreen perennial shrub from the cypress family has many varieties and varieties, which contributes to their widespread use- from creating an evergreen hedge to the central focus of a landscape idea.

It is best to purchase seedlings with a closed root system, this will allow you to work at any time of the year, as long as the weather permits. The place should be well lit, because this culture is quite photophilous. At the same time direct Sun rays throughout the daylight hours are also not desirable. The ideal location is partly shaded during the day, such as by the wall of a house.

The soil should be moist but with good drainage. The appearance of the plant suffers from dryness - the needles may turn yellow and even partially crumble. Hydration also has a negative effect. In general, watering occupies a very important place in the care of thujas, as well as top dressing. It is desirable to use special fertilizers intended for coniferous crops. And loosening the soil to a depth of no more than 10 cm (the root system of the thuja is located quite close to the surface) will complete the list of standard care measures.

Necessary actions in the spring

As soon as there are more sunny days and the snow melts (in the snowy regions - the bulk of it), it is necessary to start spring activities to care for the seedlings. Let's list the main ones.

sunburn protection

This is the first thing that needs to be done so that the thuja do not lose their attractiveness after wintering. Snow, if it remains on the branches, you need to gently shake off and cover the delicate branches of the plant with a special covering material, thereby hiding them from the too bright rays of the spring sun.

If this is not done in time, there is a high probability of yellowing of the thuja with sunny side and even partial loss of needles. At the same time, the ground around the trunk should remain open, well heated by the rays. It is necessary to remove the blackout gradually, as deciduous trees and shrubs awaken, when they release young foliage.

Important! The material for shading should not be very dense, allowing air to pass through and, partially, light, since the plant has already woken up and active vegetative processes begin to take place in it.

Pruning of diseased branches and crown formation (for adult plants)

It is worth starting to remove the branches affected by the disease, as well as to form a beautiful bush shape only after a while after removing the material for darkening. This is necessary so that the branches straighten and take their natural position. If the burn protection has not been carried out properly, there may be brown spots, they should also be removed (cut out), because such damage cannot be repaired.

The crown is trimmed with a specialized well-sharpened tool. Most often use secateurs or garden shears. But even here there are rules. It is better to carry out this procedure in dry weather and without strong wind. If the tree is in the shady part of the garden, it is necessary to slightly trim the crown, and leave the side shoots intact. Striving for light, the thuja will in any case stretch upwards. Before starting a haircut, a careful examination of the crown is carried out for damage by rot, insects and, of course, bird nests, which often choose their fluffy branches.

Plants up to two years old are not subject to pruning, with the exception of diseased and broken specimens!

If it is possible to do so without loss appearance, it is better to slightly thin out dense thickets, this will improve air circulation and reduce the risk of developing diseases. But you should do it carefully and slowly, so as not to overdo it. When growing hedges, vegetation density is not adjusted.

top dressing

As soon as the land around the thuja finally thaws, you should start feeding the bush. In the spring, this type of care is especially important, as it helps the plant to actively grow and maintain attractiveness. Most often they use various mineral and organic fertilizers, better complex ones. Applying ammonium nitrate(1 tablespoon per 10 liters of water), you can significantly accelerate the growth of plantings, but it is better to use special fertilizers for coniferous crops. There are many of them on sale, the main thing is to comply with the norm specified by the manufacturer. More fertilizer doesn't mean more benefit, an overabundance of fertilizers is no less harmful than their lack!

Before starting the procedure, the bushes must be watered with water, then the fertilizers themselves are applied, and the near-stem circle must be mulched. This will retain moisture longer and the root system will take advantage of the supplement more fully.

If you do not want to remember about top dressing the entire summer season, you can plant slow-acting fertilizers in the spring in the spring. After that, it will be enough to produce timely watering.

We can recommend fertilizing with Fertika - this versatile product, made in Finland, was created specifically for plantations that do not shed their leaves in winter, and has proven itself well when used in our latitudes. For a medium-sized thuja, a serving of 40 g is enough.

If it is necessary to reduce the growth rate of the green beauty, the amount of fertilizer is reduced, especially for nitrogen.

Pest control

Any attack is easier to prevent than to treat later. Therefore, even in the spring, plants should be treated with complex preparations that provide protection from pests and from “favorite” diseases. Thuja specialists advise using Fundazol, Rogor, Karbofos, etc., to avoid damage by a false shield or fungus, and spraying with Cypermethrin will help well against moths and aphids (which will help destroy mosquitoes on the site as a bonus).

It should be noted that diseases of coniferous crops are treated quite successfully. The main thing is to detect them in the initial stage of development and deal with the problem tightly. Spring is the best time for this.

Help for young plants

For plantations that are not yet two years old, it is worthwhile to carry out stimulating and strengthening measures.
For example, spraying "Epin". The substances included in it help the root system to form faster and easier to take root when transplanted to permanent place. And in the second year of life, they increase protection against diseases. The drug, after dissolving in the right proportion, is evenly applied to the crown from any sprayer, it is better to do this on a dry, warm evening. You need to repeat the procedure once every 10 days for a month, although there will be no harm if the number of treatments is increased to five per month. The result will be noticeable next summer.

It is also good to feed the plants with potassium and phosphorus, it is enough to do this a couple of times in the spring with an interval of 2-3 weeks. So that the newly planted thujas do not suffer from a lack of moisture, the soil under them is loosened (but not deeper than 8-10 cm) and mulched with chopped twigs or peat. The crowns themselves are abundantly poured with water from above, i.e. sprinkler is carried out.

If an error was made during landing and root collar turned out to be buried, spring is just the time when you can help the tree and transplant it again. Or raise and strengthen at the right level. There is no other way to save the seedling!

To make plantings thicker and more magnificent, starting from the age of two, in the spring you can pinch all new branches by a couple of centimeters. This method is especially good for creating dense hedges.

Fans of this evergreen beauty agree that caring for her is not very difficult and does not require much time. But spring is a responsible time and at this time it is worth giving it a few more attention. And every year it will delight the eye more and more with its lush green crown, giving the landscape of the site a finished, well-groomed and cozy look.

One of the popular evergreens is thuja. It is planted in parks, alleys, decorate areas near administrative buildings, often planted on summer cottages or household plots. Unfortunately, thuja is susceptible to diseases and pests, how to deal with them, we will consider in this article.

How to deal with thuja diseases

It is possible to fight thuja diseases, but it is better to prevent them. The thuja needs proper care: watering, fertilizing, pruning, weeding. Many diseases develop in a humid environment, so when watering it is important not to overdo it, usually watering is carried out once a week.

brown shoots

Brown shoots are a fungal infection, its signs appear in early spring. The fungus often overwinters in the remains of vegetation and in the soil, so the site must be thoroughly cleaned for the winter. In thuja, when affected, the scales of the bark begin to turn yellow, the disease gradually affects the shoots, and they die.

Owners of plots where conifers grow should know how to treat thuja from a fungus. The best antifungal agent is Fundazol. The plant is sprayed with a two percent solution in the summer-autumn period through the month of October inclusive. Affected branches must be removed. To protect the thuja from the fungus, the roots of the plant are sprinkled with limestone.

Important! Fertilizers for thuja are applied to spring period, in the fall it is categorically not desirable to fertilize the tree so that the young shoots do not freeze.

Rust is a disease of young plants, there can be several causes of the disease: high humidity, lack of nutrition, hot weather and dry air. As a preventive measure, all conifers on the site are sprayed in the spring. Spraying is carried out with the preparation "HOM" (40 g per 10 liters of water), the diseased parts of the thuja are removed. If it is not possible to localize the disease, treat with "Fundazol" (20 g per 10 liters).

Schutte

Schutte - fungal disease, its signs are darkened and falling needles. Schutte, like rust, mainly affects young trees. The reason is lack of nutrition and improper care. Treatment is carried out by spraying with a solution of the drug "Topsin-M" (15 g per 10 liters of water). Processing is carried out not earlier than the threat of winter frosts has passed. Spraying thuja with Bordeaux liquid is considered very effective against fungi; you can buy it at any flower shop.

Did you know? The Indians of North America called thuja "the tree of life." On the basis of thuja, the tribes treated many diseases, used it as a prophylactic against scurvy. The wood of the plant was used in the manufacture of fences, roofs, canoes.

The most dangerous fungal disease for thuja in the area is late blight. The reason for its appearance is most often the proximity ground water or poor soil drainage. The fungus settles on the roots of the plant and gradually affects the entire tree. The trunk closer to the surface becomes loose, the needles and bark change color to gray, and over time the tree dies. Fungicides are used for prevention, it will not be possible to cure late blight if the root system is damaged - it is better to dig up and burn the plant. Fungus spores live in the soil for a long time, so the soil must be replaced or disinfected.

tinder fungus

The tinder fungus affects thuja through mechanical damage or shrunken knots. Spores penetrate the tissues of the plant, forming peculiar growths - the fruiting bodies of the fungus. At the same time, thuja dries and turns yellow. Mushroom growths, all affected and yellowed parts of the thuja must be cut off. The discovered wounds should be cleaned and treated with a special putty. Spray the plant itself with a solution of Bordeaux mixture. Preventive spraying is carried out in the spring and autumn periods.

If the thuja turned yellow and began to dry out, and visible reasons no, what to do with it? Most likely, the cause is Fusarium roots. This fungus infects root system, so it is not immediately noticeable, first the shoots dry, and then the whole tree. The crown and roots under the bush are watered with systemic fungicides. Since the fungus appears in weakened plants with a lack of nutrition, it is necessary to feed the thuja with fertilizers, which include a large number of copper or iron.

Attention! At the beginning of spring, it is desirable to remove damaged and dry shoots; in the summer season, shorten the branches by a third of the length.

How to deal with thuja pests

There are a lot of thuja pests, insects infect both the aerial parts and the roots of the plant, in addition, they lay their offspring, which also destroys the tree.

Weevils

wireworms

Thuja false shield affects the bark with yellow fast-growing ulcers. If you do not get rid of the pest in time, the entire trunk will turn yellow, and the thuja will die. From false shields, drugs are used: "Aktellik", "Antio", "Karbofos", "Rogor". Folk remedies: soap solution on alcohol (15 g of soap, 10 ml of denatured alcohol, 1 liter of water); applying glue from caterpillars and larvae to the bark of a tree.

Thuy beetle

The thuja beetle damages the bark of the tree, leaving holes-moves. The parasite can be picked up along with the seedling when buying, so carefully inspect planting material. The appearance of the pest occurs when improper care, lack of nutrition for young plants. You can get rid of it by spraying with insecticides. As a preventive measure, treat the thuja with Bordeaux liquid in the spring.

Thuja is one of the excellent decorative and useful plants for your garden or yard.

It has the ability to disinfect the air and release phytoncides, which increases immunity.

There are five types of thuja western, Korean, Sichuan, folded and Japanese.

She might be like undersized shrub, and a tree up to 15 meters in height.

Thuja, distribution and application

it evergreen perfect for any landscape all year round. Coniferous trees or shrubs take root perfectly in different regions. Most species are frost-resistant specimens. Often tolerate frosts down to -30 degrees. The plant grows well in cities with polluted air. in different climatic zones, except for the extreme north and too frosty areas. The most popular thuja western, it is most resistant to frost.

Planting and care, so that the thuja does not dry out, must be correct

Thuja is a non-capricious plant. It is very easy to take care of her. It is undemanding to soils, moisture, perfectly tolerates decorative pruning. Likes light, but not constant sun. Therefore, it is best to plant it in partial shade.

In the first time after planting, the plant will require care, subsequent growth and health depend on it.

Young seedlings require regular watering in the evening or in the morning (1, 2 times in 10 days, depending on weather conditions) and spraying - sprinkling once a week).

Mulching. The root circle is covered with sawdust, spruce branches, peat. This will keep the earth from drying out. In summer, mulching protects the plant from the sun, in winter from freezing.

Loosening around the seedling is necessary for good growth and development. But this is done to a depth of no more than 10 cm, since its roots are in the surface layer.

AT winter period the crown of the thuja is tied to avoid breakage of branches under the weight of snow.

Feed the tree once a year. If the first time when landing - then the next one in a year or two. It is good to add Epin growth regulator when planting (1 ampoule per 10 liters).

Thuja dried up, why is this happening?

This may lead to the following weather reasons:

Severe frosts: some plant varieties are not very hardy and may freeze,

The sun - can burn young plants, so partial shade is better for planting,

If it seemed to you that the thuja had dried up, then you need to know that once every 3-6 years, by the fall, the scales of its needles tend to die off, but new ones grow in the spring. In this case, you just need to clean off the dead scales.

In addition, thuja can disappear under the following conditions:

Insufficient watering, the plant should be watered regularly, but not flooded: do after planting - 1 time per week, and in dry weather - 2 times a week, in an amount of about 10 liters per tree,

Overdose chemical fertilizers or drugs, it is worth feeding the plant two years after planting at the rate of 100 g per m2 mineral fertilizers, and organic 2-3 liters. It is not recommended to use fresh manure, you can use rotted manure for six months, and leave the manure for at least 10 days and add it under the plant, diluting it with water.

The presence of rodents in the soil: moles, bears, a closely located anthill.

From what the thuja dried up. Diseases and pests of thuja

Thuja, among other things, may be subject to some diseases and pest invasion. As a result, it can dry out and fall apart.

These are diseases such as late blight, brown shoots, rust and shute. Of the pests, the following are dangerous: thuja false shield, thuja moth moth, wireworm, thuja beetle, spider mite.

Tui diseases and ways to deal with them

Phytophthora

This is a fungal disease that is dangerous for all plants, which first affects the root, then upper part. It looks like this: the tree withers, then a gray color appears on the leaves, the trunk softens from below. The root begins to emit a putrid odor. Usually, late blight-affected plants are difficult to cure, but you can try.

To protect the plant from this disease is:

1. Correctly select a place for planting a thuja, so that it is not in a place with a constant high humidity and the soil had good drainage properties.

2. Water more often seedlings and large plants with fungicides.

3. If the above measures did not help, then it is worth destroying the tree (bush), and replacing the ground where it grew or you can spill it with boiling water.

brown shoots

This disease is manifested in the browning of the shoots and their death. This often comes from poor nutrition. First, the scales turn yellow, then the shoots turn brown and the branches die off.

For treatment you need:

1. cut off the affected shoots,

2. constantly pour limestone under the root,

3. feed regularly,

4. in summer and early autumn, constantly spray thuja with fungicidal agents.

In addition, browning may occur due to poor access of nutrients to the root system. This can happen due to fusarium or tracheomycosis. In these cases, it should be treated with foundationazole or other similar preparations, both under the root and by spraying the crown.

Prophylactic treatment with zircon helps to protect plants from fungal diseases.

Rust and Shutte

With these fungal diseases, the crown darkens and the needles fall off. Mostly young seedlings suffer from rust. For prevention purposes, it is worth cutting off the affected shoots and burning them so that the disease does not spread.

For protection and treatment you need:

Treatment copper-containing preparations, for example, HOM or Bordeaux mixture;

With the progression of the disease - the strait of near-stem circles with foundationol, which should not be sprayed, but used only for irrigation.

Tui pests and how to deal with them

Thuja moth moth

Its larvae begin to gnaw through tree branches, as a result of which they die. That is why thuja often dries up.

To protect against it, they are sprayed with preparations containing pyrethroids. These are Fumitox Mosquitol Antiklesh, Antiklesh, Tornado Antiklesh. Moreover, you need to do this several times with a frequency of one week.

Thuja false shield

A small insect of light yellow color. When adults die, larvae remain. With the defeat of this pest, wilting and drying of the needles and the whole plant are observed.

For protection, they are treated with Commander-Aktara twice from the end of May to mid-June with an interval of 7-12 days and Champion fungicide - twice. Or Karbofos. In addition, you can wrap the stem of the plant with burlap or straw. In autumn - apply the drug Decis

wireworm

The larvae of this pest infect the root system. You can get rid of them by digging the soil of the trunk circle.

Thuy beetle

If this pest has already appeared on the plant, then it is better to get rid of the plant itself. These bugs gnaw through the bark of a tree and lay their eggs under it. The plant dies within a month. There are no methods to deal with it yet. Only prevention is possible with the help of Aktara or Clipper.

spider mite

This insect is especially dangerous in the summer in the heat. Its larvae damage the needles. Signs of damage by a tick are a thin cobweb on the branches, and small yellow spots appear on the scales, which subsequently turn into brown dead areas.

Protection and prevention from the pest consists in processing several times with Aktofit or Atkelit. Additionally, it is worth feeding the plant with fertilizers containing magnesium sulfate.

If the thuja has dried up, and the reasons have not been established, what should I do?

If you do not find the reasons for the drying of trees, then you can use Epin. You can spray the plant with this drug every two weeks and see how it behaves during the year. Perhaps he can be saved.

If the tree is young, try replanting it. Maybe he just doesn't like the place. When transplanting, carefully inspect the roots, cut off the rotten and affected ones, treat them with Kornevin.

Proper care, preventive treatments and targeted assistance in case of damage by diseases and pests will help keep the thuja beautiful and healthy for a long time.

If the needles turn yellow and fall off, then, most likely, it is damaged by thuja aphid, thereby reducing the decorativeness of plantings. These insects have a gray-brown color, and they are also covered with silver-white wax dust. Aphids damage mainly the lower part of the shoots. To get rid of them, you need to spray the plant with karbofos.

• Karbofos;
• Aktellik.

Processing is carried out before bud break during a mass outing of vagrants.

Wireworm larvae most commonly found in low-lying areas acidic soil and stagnant water, since these are the conditions that are most favorable for them. It will help to get rid of such pests by drainage and deoxidation of the earth, as well as autumn digging. If a large number of beetles is observed, then agents containing diazonin are introduced into the soil.

But if a coniferous plant was damaged by a thuja beetle, then it should be disposed of immediately so that other thuja do not suffer. When this pest infects thuja, it leaves holes in the bark. Therefore, when planting healthy trees, it is necessary to carefully inspect them for the presence of passages in the trunk and resin leakage. Moreover, it is necessary to ensure best conditions for the development of strong and healthy plants.

What diseases affect thuja?

Phytophthora

This fungal disease is the most dangerous. It strikes the root first, and then destroys the top layer coniferous plant. This is reflected in the thuja as follows:

• The tree begins to wither;
• A gray color appears;
• The trunk from below becomes soft.

But under the bark, the tissue changes its color, it becomes brown, while a plaque appears below. The root smells of rot, besides, it becomes brittle.

As a rule, this disease affects thujas growing in a place where moisture constantly stagnates or the soil is not drained. To prevent the appearance of phytophthora, it is necessary to water the plant with fungicides as often as possible. However, if the disease still managed to get to him, it is better to get rid of the thuja, and change the land, since such a fungus is able to live in it for a long time.

brown shoots

This disease occurs mainly in early spring. It manifests itself by yellowing of some scales. If nothing is done, then the shoot will first turn brown, and then die. For treatment, it is necessary to cut out the affected processes. After that, the tree must be constantly sprinkled with limestone and fed. From mid-summer to the end of September, thuja should be sprayed with foundationazole.

By the way, browning and yellowing of the tops of the plant can occur when there is a violation of the access of nutrients from the roots to the crown. This happens for the following reasons:

Fusarium or tracheomycosis. In this situation, it is necessary to water under the root and spray the thuja crowns with a 0.2% solution of foundationol. Instead, you can use another fungicide, for example, Abiga Peak, Kartocide or HOM. It will also help save thuja treatment with zircon, which improves the ability to resist fungal diseases.

Root locking. It usually occurs due to too high standing of groundwater.

Rust and Shutte

These fungal infections are manifested by abscission and darkening of the needles. Most often, infection occurs in the spring, but spreads year-round. As a rule, young plants suffer from them. For prevention, you need to cut off all bad branches and burn them to prevent spread to other coniferous trees. True, this technique does not always help.

It is advisable to process the affected thuja copper fungicide, such as HOM. Approximately 40 grams of this powder should be diluted in 10 liters of water. The affected plants are sprayed with the finished solution in May and summer, when the disease reappears. But preventive treatment must also be carried out on the rest of the thujas, without exception, because they are all susceptible to infection with rust and shute. Make it the same drug, but only once in the spring.

If you cannot achieve the desired result, then trunk circles it is better to shed infected plants with Fundazol. Moreover, this drug should not be sprayed with thuja. It is used exclusively for the destruction of infection in the soil.

For the treatment of a plant affected by shute, use Topsin-M. To prepare the solution, you will need to take the drug 15 grams, and dilute it in 10 liters of water. Enough mixture to spray one mature tree. Processing is carried out once in the spring, when the night frosts stop.

You can replace HOM with Borodskaya mixture. This tool is proven and very effective.

Strengthening the immunity of thuja top dressing

The appearance and condition of most trees depend on the balance of nutrients and their availability. With a lack of iron in the ground, the needles turn white and turn yellow on individual shoots, and with a lack of phosphorus, they acquire a red-violet color. If there is little nitrogen in the soil, then the plants begin to grow worse.

That is why it is necessary to perform foliar and root feeding. For these purposes, special fertilizers for conifers are used. Plant resistance to care errors and negative factors is increased by biologically active preparations and growth regulators. Many gardeners, in order to strengthen immunity to water or temperature stress, improve seedling survival and nutrient intake, use the following tools:

• Nikfan;
• Zircon;
• Humisol;
• Immunocytophyte;
• Epin-extra.

In summer, in the heat, the root circle of the plant is desirable cover with peat. Thus, moisture loss can be avoided. In addition, it should be covered from sunburn, as rot may appear. Water the tree occasionally from above to stimulate the development of young shoots.

In the first few winters, sawdust is used to powder the earth. But in the spring, thuja must be fed with fertilizers for coniferous trees. In addition, experts recommend using organic and mineral substances: biohumus, ash or compost.

After planting the thuja, it is advisable to dilute the fertilizer by half to minimize the risk of burns. In the spring you need to cut the plant and remove diseased growths. Shorten shoots by 30% several times a year to give them splendor and stimulate branch growth. With proper care of the plant, pests and diseases will bypass it, and the site will be decorated with a healthy and beautiful thuja.