After planting thuja in the garden  you expect the tree to grow, begin to turn green, please the eye, but instead the thuja turns yellow after planting, perhaps in some places it also dries. Why thuja turns yellow after landingand what to do to reanimate it, you will learn in today's article. If the question remains relevant to you, continue reading.

Usually the thuja turns yellow for natural reasons, for example, in the fall, preparing for a state of rest. Any beginner grower understands that this is a completely normal process, but what about the noticeable yellowing of the Tui after planting in the spring?

Various factors can affect the yellowing of the thuja - acquired (improper care) or natural (changes in weather conditions).

Why thuja turns yellow after planting:

  • Lack / stagnation of moisture;
  • Unsuitable soil mix;
  • Illiterate care;
  • Changing weather conditions;

Moisture in the soil mixture is maintained depending on the type of components that make up the substrate for planting. When planting a thuja in open ground, you should follow certain rules:

It is best to plant thuyu in a drained turfy ground, flavored with sand and peat in moderate volumes.

Why thuja turns yellow:

  • Presence of groundwater, which lead to rotting of the roots and, as a result, disruption of the surface system.
  • Lack of moisture  - thuja drying.
  • Thickened landing, lack of moisture, air and nutrients on each tree.
  • Excessive lighting  and exposure to direct sunlight - a straw color is acquired, a noticeable partial yellowing in places of strong sun exposure.
  • Roadside TUI  turn yellow from salts, components, reagents for cleansing.
  • Lack of nutrients  - fasting on the background of insufficient feeding. In addition to yellowness, thuja acquires a brown, purple hue on the edges of the leaves.
  • Lowering the temperature  or its jumps, the air temperature below -20 ° C - russeting and yellowing of parts of the thuja.

Thuja diseases: why the thuja turns yellow after planting

Pathogenic bacteria and fungi that destroy the root system and the bark of the thuja also cause changes in the color of the branches.

Tui diseases:

  • Brown shyutte (stormy snow mold);
  • Necrosis (fungal disease);
  • Stem rot;

Brown shutte settles on young Tui. The disease manifests itself in the spring, as soon as the snow melts. The fungus of the snow mold appears as black bloom, then point to the other branches. First of all, the thinnest shoots die off.

Necrosis of the bark tissue   and the branches begins due to the defeat of fungi. First, the lower branches change color, after which the yellowness spreads to the upper shoots. Sporulation in the form of dark spots or gray-black tubercles (1-2 mm in diameter) are localized on the cortex. Mycelium spreads with an abundance of moisture.

The defeat of Tui may be due to the appearance stem rot.   In this case, any change in the color of the tui for no other reason may indicate the presence of the disease.

Many gardeners wonder why yellow thuja. Reasons for changing the color of the needles may be in violation of the rules of care or diseases. Depending on the type of provoking factor, the ways to solve the problem are selected.

Thuja turned yellow after winter, what to do - try to find the cause of this phenomenon. Natural factors include:

  1. Loss of chlorophyll. In autumn, the tree is deficient in a substance that feeds needles. The needles turn yellow and begin to fall off. In place of the old yellow needles appear new green. This is the stage of the natural life cycle of the tree. In late autumn, the needles change color dramatically, in the spring the plant's condition returns to normal.
  2. Cold reaction. Yellowing is observed in winter and autumn, in the spring and summer of this sign should not be observed.
  3. The lack of moisture in the root system. In warm sunny weather you need to water the trees by spraying and sprinkling. A properly molded tree should also be watered abundantly. This will allow moisture to linger in the soil and be absorbed by the plant.
  4. Excess moisture. This is due to the lack of drainage. The roots begin to rot, which is why the needles change their color. In this case, thuyu recommended to replant. The organization of the drainage system will also help. With an excess of moisture, the plant is affected by the fungus, because of which it begins to fall ill.
  5. Sunburn Arise due to low humidity and high solar activity in the springtime. Ultraviolet rays burn the needles and bark of a young tree. At the end of winter, the thuja should be protected from light by covering it with a white sheet, lutrasil or camouflage netting. Canvases throw on the plant and do not remove until the end of April. Burned wood should be sprayed with a zircon or epine-based growth stimulator.
  6. Shortage of space. If the roots of the plant can not grow in breadth, the needles begin to turn yellow. This happens a few years after landing in open ground, when the thuja overgrows the landing hole. Save the tree can timely transfer to a new location.
  7. Landing at a short distance. If the trees are too close together, they may lose their power. Violation of air circulation leads to rotting of the roots.
  8. Lack of nutrients in the soil. When growing thuja, special fertilizers must be applied to the soil to ensure normal growth and development of the plant. When iron deficiency in the soil needles turn yellow or fade. Lack of phosphorus leads to dropping needles.
  9. Wrong care. Thuya branches after planting should be regularly formed. Yellowing of the needles is facilitated by the removal of a large amount of green mass of the plant or the use of a blunt instrument.

Thuja diseases

Yellowing of the needles of the thuja is observed in the following diseases:

How to treat the disease?

How to care for thuja in the garden so that it is lush and green?

If you want to admire the beautiful green plants on the plot, then you need to know how to care for the thuja so that it does not turn yellow or black.

It happens that the thuja loses its color, pomp and beauty after winter or planting, and many beginning gardeners do not know how to restore their health to the poultry. To avoid mistakes and learn how to properly maintain thuja in the garden plot, it is necessary to remember and apply the rules of agrotechnology in the cultivation of coniferous plants.

Depending on when the thuja was planted, further care will be taken. The right planting and the chosen place for the hilt will be the starting points of the next steps, these two important factors have a huge impact on the condition of the plants in the future.

For thujas, planted in spring and summer, first of all, careful watering is required once every seven days, on the condition of warm, but not hot days. If the weather is sunny, the air is hot, increase the watering to two times a week.

The volume of water applied under the shrub should be at least one bucket in normal conditions, in extreme - two. A larger amount of fluid will be needed by an adult and a large plant, and in cases where the transplant was performed.

The first month of thuja growth is accompanied by obligatory sprinkling, at which pores open and the plant begins to breathe, a delicate coniferous smell can be felt. Scaly needles thuy actively evaporates moisture, so they constantly need to be fed with water.

Spray thuya once a week, on sunny hot days, sprinkling is required every day. The best time for plant irrigation is the evening after sunset, but it is possible in the morning if the thuja is not in the sun for a couple of hours.

Tui after planting in the fall require irrigation and sprinkling in the same volumes as spring seedlings. Young plants need to gain enough moisture to winter well, if autumn is rainy and prolonged, watering should stop or reduce the amount. An excess of moisture for a period of more than two weeks can lead to thuja disease.

Fertilizer after planting is not necessary, the appropriate dressing should have been made at planting. If for any reason fertilizers have not been applied, and the soil in the plot is poor in trace elements, then it is better to feed the plant, but this can be done only in spring and summer.

When fertilizers are applied in autumn, sprouts and twigs will start to develop at the thuja, which will not have time to form by the winter, may die with strong frosts.

After planting, the Tui is best fed with a solution of Zircon, the drug stimulates root formation, improves the absorption of water and nutrients by the plant. The fungicidal and antiviral properties of Zircon will protect the ephedra from diseases and viruses in the initial stages of development.

Thuja care at different times of the year

Thuja care begins after winter, lasts all spring and summer, ends in late autumn. According to many gardeners, the plant is unpretentious and can grow with minimal attention, but during the cultivation process a number of significant problems arise: thuja after winter is dry, blackened, turned yellow after transplanting, how to water, what to feed and what to do? All these questions have answers, consider the most common and most important.

When to open thuja after winter?

Do not remove the shelter from the plants immediately with the advent of the first rays of the sun, especially for young seedlings growing for the first year. Make sure that the ground around the thuja is thawed and warmed slightly, then remove the covering material. Opening earlier, there is a risk of yellowing of the thuja, as the warm sun will cause the growth of twigs and shoots, the root system of the conifer in the frozen soil will be at rest, and the water metabolism will be disturbed.

What to do if thuja turned yellow after winter?

Before taking action, you need to find the cause of the yellowing of green branches and shoots, there may be several:
Spring burning of conifers. A rather common phenomenon, in order to avoid this, plants prune as early as February, and not in April, when the snow melts. Do not use thick fabrics and fabrics to cover the thuja, gauze and mosquito net is fine.

Spunbond is not suitable, because it transmits ultraviolet rays, which are most dangerous for Tui spring. No need to coniferous plants "muffle in a fur coat", the greenhouse effect inside only worsens the condition of green handsome. If the moment is missed in early spring, water the saplings with warm water and spray the plants with the Ecogel - Antistress biostimulator to accelerate growth. With the beginning of summer, you will need to cut the burnt twigs;


yellowed thuja on the photo

Rooting of the roots occurs when water stagnates at the site or nearby groundwater. Excess moisture in the soil can be a source of not only yellow needles, but also mold on the thuja. If the plants were in the water for a short time, remove the bad branches with a secateur, gently shake the ground around the trunk, not too deep, trying not to touch the root system.

Treat with any antifungal agent, sprinkle crown and branches with Zircon or Epin to stimulate growth. In case of close groundwater flow, the thuja needs to be transplanted to another place, as over time, the roots will grow even more, the plant will die from an excess of moisture;

If the thuja is blackened after winter, most likely a fungal infection has risen. Cut all the bad branches and treat with Hom, and if the fungus reappears, process it again. Pristvolnye circles of thuja can be watered with a solution of Fundazole or another fungicide. A plant can turn black if it is tagged by pets, fence the plant and treat it with any fungicide.

In spring and summer, as in the fall, thuja are watered as well as after planting, taking into account weather conditions and observing the time frame. Top dressing of a thuy begins in early spring, ends in the second half of August, so as not to cause the growth of shoots for winter.

In the first year of life, plants are not fed, then fertilizers are applied as needed. Use complex fertilizers for tui, such as Osmokot (10-15 grams per bush) or Kemira-Universal (100 grams per 1 m² of planting).

Pay attention to this:

When thuja turns black, there can be only two reasons for this:

1 Effect on the needles of animal feces, both cats and dogs.
2 Fungal diseases

The photo on the left is the result of the effect of animal feces, as the contact area is clearly tracked. In differentiating the two causes of blackening of the thuja, it is important to observe the duration and progression of the process, the presence of visible spores of fungi or fungal plaque, the presence of adjacent sites of defeating needles of different nature, the presence of animals in your yard or next tag your favorite thuyu). It also happens that the blackening of the Tui is due to both of the above reasons.

Blackened thuja - what to do. Before finding out the exact causes of blackening of the needles, it may take time for the condition of the thuja to deteriorate. Therefore, in any case, apply a single or double spraying of thuja with fungicides against fungal diseases, as this will not harm the plant if you have not done this procedure for a long time.

The first reason is from animal excrement   the leaves of the thuja turn black at the points of contact of the needles with urine (see photo). The vastness of blackening depends on the duration of the impact of the damaging factor. If we look at individual branches, then the areas of blackening on them are at first scattered, that is, they are arranged in a chaotic manner, like splashes of watercolor paint (see the photo under the next paragraph). In contrast, for example, from fungal diseases in which the infection spreads gradually during the course of a shoot. As urine is exposed, a large area of ​​tui is formed. pronounced blackeningas if painted over with black paint. In the future, these areas will not be restored. In the photo below you can see a typical example that does not cause doubts that the thuja is blackened by animal feces (the photo is clickable).

The struck thujas, which we see in the upper photos, are close to death due to the vast area of ​​the lesion. In general, the area of ​​lesions depends largely on the height of animals that "mark" the plant and on their number in the yard. And the urine of the thuja is harmful not only for dogs, but also for cats, however, like all other animals. Below you can see my photos of some twigs and plants, as the needles of animal tuffs turn black from animals (the reason is established correctly with the personal presence of a professional):

The photo blackened individual needles in places of contact. What then happens to them? They begin to gradually dry, lose their luster, then die off and fall off. If you have a low thuja and it is “looked at” by a large dog in the yard, then the plant will inevitably die if you do not take action. Unfortunately, the needles affected by feces will not be restored any more and such sites on the thuja will remain "bald" in the future. It happens when animals start to mark high thuja from below, therefore only its lower parts suffer.

What if thuja is blackened by animal excrement. For starters, you can try to wash off the remnants of feces with ordinary water. In any case, this tue will not harm. Then you need to create a fence that would prevent dogs and cats from marking the plant. You can also use repellent sprays that are sold in veterinary pharmacies. Of the natural repelling substances, I can advise only ground pepper, the smell of which does not like either dogs or cats. Blackened needles need to first try to comb with his hands, because if the branch is alive, it is possible that part of the needles can recover. For this, it will not be superfluous to use reanimation solutions. For example, to stimulate the growth of new shoots, the crown of thuja should be sprayed with growth stimulants, such as Zircon, Appin, etc. These preparations can be sprinkled 2-3 times with an interval of 1 to 2 weeks. Fully dried branches will have to be cut.

The second reason for Tui blackening - from fungal diseases.   It should be noted that the vital activity of such microorganisms as fungi is associated not only with various changes in the color of the needles in the thuja, but also with the characteristic appearance of fungi on its surface. Fungi are perhaps the most often cause problems for gardeners, causing various manifestations of disease in plants.

Of course, fungal diseases do not immediately cause blackening of the needles, and not all of them lead to this result. There are many pathogens of fungal diseases, but they have something in common. For example, the needles first turn reddish-brown, brown, or red, and then may darken. On closer examination of the affected areas, it is possible to see the spores of the fungi in the form of black dots or strokes. There are fungi that cause the needles to decay, as well as the appearance of dense mycelial films or bloom from white, white to gray to dark brown in early spring. The presence in the spring of the most dense and dark plaque is characteristic of a fairly common disease of conifers, referred to as brown schutte. It was during this period that the presence of a dark bloom makes us wonder why the thuja turned black after winter (see photo). In the summer, when a brown stump is affected, you can see the black fruit bodies of the fungus.

In the first photo, yellow needles are visible on the left, and inside - areas of blackening, which by the nature of localization cannot be the result of the effect of animal excreta. Apparently, this is a fungal disease. In the second photo from above, the blackening areas coexist with browning and yellowing areas of varying degrees of severity, which allow to make a preliminary conclusion that blackening was the result of aggravation of a single progressive process, most likely fungal disease.

In the case of the brown shutte, the needles of the Tui initially turn yellow, then, as the disease progresses, they acquire a darker and even black - brown color. In the middle of summer, the fruiting bodies of the fungus causing this disease are visible to the eye, they are oval and black in color.

In any case, only a professional can distinguish between fungal diseases, we need only know their common features and be able to treat the plant. For more information about the diseases of thuja, it is written in another article: what hurts thuja and how to treat it.

Treatment of fungal diseases. Pine needles are sprayed with any of the known fungicides: foundation, copper oxycholoride, Homel, etc. The spraying is usually carried out twice, sometimes three times (depending on) with an interval of 1 - 2 weeks. It should be remembered that excess copper leads to slower growth. Then yellowed needles from living branches are raked by hands with the subsequent sprinkling of a growth stimulator, since the appearance of new leaves on them is possible, although this is not a fact. As a stimulant, you can use Zircon in a concentration of 4 drops per 1 liter, you can spray them several times with an interval of a week. If the plant is weakened, the crown can also be sprayed with Appin mixed with Cytitis 3 times with an interval of 1-2 weeks. Fully dried diseased branches must be removed and burned, the same should be done with dead plants, as they are a source of infection.

Thuja is a tree from a sort of coniferous plants, and this means that it belongs to the list of evergreens. That is why thuja can be observed “in all its glory” both in summer and in winter.

However, sometimes its natural greenery is disturbed, and today we will understand why the thuja turns yellow in the fall and what to do in such a situation.

Why does thuja have yellow needles in autumn

One of the answers to the question of why the thuja smaragd turns yellow in the fall is the end of the life of the coniferous leaves of the tree. The fact is that the leaves of these evergreen trees have their specific “shelf life”, or their own lifespan, if you please. Of course, the life of conifers is not short, and sometimes reaches 6 years. However, on average, it varies between 3–6 years.

Of course, after the expiration of the life of the needles, the tree does not die, there is only a complete loss of chlorophyll grains, after which the coniferous leaves of the tree die, and they are, as a result, replaced by new, fresh and green. However, the process of replacing the leaves with new ones takes some time, so it will be possible to see the green tree again only at the end of winter.

Why does yellow thuja at the trunk fall

Another problem with yellowing of thuja can be associated with the appearance of yellowness directly at the trunk of the tree. If you notice a similar problem in the trees on your plot, it is almost guaranteed that stem rot can be the cause of its occurrence. Carefully check the tree trunks for rot, and if you find any, immediately proceed to eliminate it.

Why does yellow thuja smaragd inside fall

The last problem associated with the yellowing of the Tumi Smaragd, which we planned to consider today, is the yellowing of the tree inside. This trouble can also be familiar to many gardeners and people who have such coniferous shrubs on the private plot.

However, stem pests are often considered the cause of this trouble. The presence of all kinds of insects in the bark of a tree, such as, for example, beetle, is quite capable of causing the tree to begin to turn yellow from the inside.

Pests get to the trunk of a tree through holes in the bark, and then begin to spoil it. To eliminate such a nuisance, it is necessary to treat the trunk using Karbofos, as well as use other antiseptic agents for trees.