Why do thuja turn yellow and brown?

Pine, a genus of coniferous trees of the pine family. These are evergreen trees that can live 400-600 years. But what to do if your pine is not so green, and in some places you can see yellow needles?

Do not panic at once, thinking that the tree is disappearing or has already disappeared. Yellowing needles do not always indicate a problem.

Seasonal dumping of needles.

As deciduous plants drop leaves in autumn, so evergreen plants periodically drop their needles. Unlike deciduous trees, which drop all their leaves at once, pines, dropping old needles, retain most of the needles. Old needles turn yellow before falling off and the trees may seem sick.
Pine trees tend to shed needles in the fall, although they can shed them at other times of the year. The lifespan of needles is about 3-5 years, after which they are replaced. Most pine species retain their needles for several years before the old three-year-old needles fall.

Old yellow needles that drop pines, located closer to the inside of the tree. Because the young needle, which remains green, is on the outside of the tree, seasonal shedding of needles may go unnoticed in most species. However, white pine is an example of one species of pine that can lose a significant amount of needles in the fall.

Environmental factors that cause the fall of needles.

Pines are sensitive to wind damage. After a strong storm, the needles may turn yellow, and some trees eventually die. Some pines may remain green for a year before the needles turn yellow on the entire tree.
Pines can react to sharp fluctuations in temperature, especially in autumn, plant tissues can be injured, which eventually causes yellowing of the needles.

Road salt that gets on pines can burn plant tissues, causing yellowing of needles. Even air pollution can lead to pine disease.

Pine gets sick and turns yellow when transplanted.

The shock of transplanting can cause the needles to turn yellow, even if the tree is planted correctly. Improper planting techniques, such as planting a tree too deep or not enough water until the plant has taken root, can turn evergreen pines into yellow pines.

Planting pine trees in hot weather instead of autumn or winter can cause the needles to turn yellow first, and then completely turn brown.

Nutrient deficiency.

All plants need water and nutrients, but individual needs depend on plant species. A number of nutrient deficiencies can cause the leaves to turn yellow.

One example is nitrogen deficiency, which can cause needles to turn yellow. Pines and other plants should be fertilized according to the recommendations of soil tests to make sure that you meet their needs.

Pests and diseases, yellowing of needles

If your evergreen plant turns yellow in the spring, the culprit may be several pests that feed on pine needles: mites. As their feeding progresses, symptoms include curvature and yellowing of the needles.

If the needles turn brown, you need to check the tree for the presence of bark beetles or bast eaters. Another pest of pine is the foliar nematode. Nematodes feed on plant tissue, which makes the needles yellow.

The cause of yellowing can be the following diseases: fusarium wilt, shingles, rust.

In any case, if you find yellowed needles should consult a specialist. Timely and correct treatment gives an effective result, and pines will delight with their greenery and aroma for many years to come.

укладання доріжок

Laying paths – how not to damage the trees?

Trees are living beings that are quite sensitive to changes in the environment. Changes in the soil lead to the weakening of trees, and often to their death. Injured roots, soil compaction, lack of water and nutrients are just some of the problems that trees face on construction sites.

To understand how far the roots of the tree have gone, look at the crown. The roots reflect the crown underground. But be careful, this only applies to natural species of trees and trees without pruning! The columnar apple or bonsai has a small crown, but its roots go far beyond it. This provides it with enough nutrients and water.

To protect the tree from injury to the roots when laying paths, you need to add a little distance (about 2 m) to the radius of the crown. If the roots are cut off during construction work, their function cannot be compensated by deep tap roots.


There is a question of stability

Tree roots perform several functions. On the one hand, they absorb water and nutrients, on the other hand, they fix the tree in the soil. To do this, each tree develops roots that go vertically into the depths, and roots that go just below the surface.

Compared to oak, which forms a long, thick taproot down, apple or pine has mostly flat roots. If the tree loses its roots on one side during construction, it is no longer fixed to the ground on this side. It does not have a long taproot that supports it against the wind. If the roots on one side of the tree are missing, it is no longer protected from the wind, and the tree falls more easily during a storm. With small trees in the garden, this is rarely a problem, and with large trees there are dangers to buildings and especially to human health and life.

Not sure how to pave paths without damaging the trees? – Contact:

+380800750842 or +380443606770 Viber 380631813995


HOW FAR from the tree to pave paths?

Laying paths near trees should be as careful as possible not to damage коріння.

Додайте один-два метри навколо всієї крони в якості “буфера”. Draw a radius around the tree. Be careful with the first stitches. If you come across a root, you need to increase the radius. Make sure that stones, concrete and other heavy objects do not get on the root system. Excessive riding also damages the roots and compacts the soil above the roots.


If trees have recently been planted.

Planning begins when you plant a tree. The young tree has a small crown and a slender stem. But that is changing fast! This tree also grows, its trunk becomes wider and taller, and its roots also grow. Before buying, find out what size your tree will be in adulthood, and find a suitable place. This will help you avoid many problems in the future.

Caring for the tree after laying the path.

When the path is finished, you need to closely monitor the tree. If the leaves or fruits change, it indicates that the tree needs to get used to the new environmental conditions. Laying tracks can lead to less water supply. Also, the soil above the roots can be compacted as a result of construction. Therefore, on hot days it is necessary to water the tree to help it adapt to new conditions.


Do not use salt for roads in winter. This damages the tree and the lawn and has a long lasting effect. Use sawdust or chips to fight ice and snow.

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